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00:00As-salamu alaikum to everyone. Welcome to the HSC Academic to Admission course.
00:07I am Mahbubur Rahman Chipran and I am currently studying in Bangladesh Prakashol University,
00:12and I have a Bachelor's Degree.
00:14So, you know how the HSC Academic to Admission course is organized.
00:18It is organized in such a way that you will be able to clear your basics through this course.
00:26So, today we are going to talk about the second chapter of our Physics first paper, which is Vector.
00:33So, if I want to say a little bit about the Vector chapter,
00:39that is, the Vector chapter, think about it, the Vector chapter is given at the very beginning,
00:44that is, the second chapter of the first paper.
00:47So, the Vector chapter is a very good example,
00:50because if we look at the rest of the chapters,
00:53in almost all cases, the basic knowledge of the Vector is required.
00:57So, we will study the Vector chapter a little better.
01:00And since you are new to the internet,
01:02so it is better to study the chapters at the beginning with a little more time,
01:05as far as I remember.
01:07Because at first, our brains are a little raw,
01:09so then it is a little difficult for us to catch things.
01:12So, if we study the Vector chapter or the chapters in front of us with a little time,
01:16we can see that this chapter, I will go and study this chapter.
01:20I can take 7-8 or 9-10 classes.
01:23So, we will study a little better.
01:25Then this knowledge is required.
01:27When we go to study the next chapters,
01:29then we will not take as much time.
01:31So, without further ado, let's start.
01:33So, this is our Vector chapter.
01:36So, in the Vector chapter,
01:38we took this knowledge a little earlier.
01:42Where did we take it?
01:44We actually studied this thing from class 9-10.
01:46So, we knew a lot about the sign.
01:48We knew that there are two types of signs,
01:50that is, the scalar sign and the vector sign.
01:52But we did not get a very good understanding of the vector sign.
01:55But here we will discuss in detail.
01:57What will we do?
01:58We will discuss in detail once,
02:00plus we will try to solve some math next to it.
02:02So, let's see how much we can do.
02:04Okay.
02:05So, we know that here,
02:07we said that we will discuss the vector sign.
02:10So, what is the vector sign?
02:12We said that we will discuss the vector sign.
02:15So, before knowing the vector sign,
02:17we need to understand what the sign is.
02:19Okay?
02:20So, let's first see what the sign is.
02:22So, I will give the topic and name.
02:24That is our sign.
02:28So, I will give a box.
02:37So, our main topic is the sign.
02:40Okay?
02:41So, what is the sign?
02:42The sign is,
02:43in this vast world,
02:44whatever we can measure,
02:45we call it a sign.
02:46For example,
02:47I can measure the weight of this column.
02:50Then it is a sign.
02:51Okay?
02:52That is, we can measure the weight of this region from here.
02:54That is why we call it a weight.
02:55So, if the weight can be measured,
02:57that is a sign.
02:58Okay?
02:59So, think about it,
03:00I can measure my weight,
03:01that is, I can measure this much kg.
03:03Then my weight is a sign.
03:05Even, you think about it,
03:06the time I am looking at the clock,
03:09that can be measured.
03:11So, what is that weight?
03:12It is a sign.
03:13Okay.
03:14Now, you tell me,
03:15you are very happy,
03:16or you are very sad,
03:17or, what should I say, sad.
03:19So, can you measure that?
03:21But we can't measure that.
03:23How happy I am,
03:24or how satisfied I am,
03:25we can't measure these things.
03:27So, we can't say anything about those things.
03:29We can't say it is a sign.
03:30Okay?
03:31So, basically, we got an idea
03:32about what the sign is.
03:33So, we can divide this sign into two parts.
03:36How many parts?
03:37In two parts.
03:38Let's see.
03:39So,
03:44we can divide it into two parts.
03:45This one,
03:46and this one.
03:47So, basically, we all know that
03:49we can divide a sign into two parts.
03:51One camera is called a scalar sign.
03:52What do we call this one?
03:53Scalar sign.
03:57Scalar sign.
03:58The other camera is called a vector sign.
04:03Scalar sign and what else?
04:04Vector sign.
04:05Okay?
04:06So, basically, we know that
04:07what is the difference between
04:08a scalar sign and a vector sign.
04:09Okay?
04:10So, we call the scalar sign
04:11as a positive sign.
04:12What do we call this one?
04:15Positive sign.
04:21And the vector sign is
04:23positive sign.
04:28Positive sign.
04:32So, looking at the name,
04:33we can understand that
04:34when we say positive sign,
04:35it is understood that
04:36there is no difference
04:37between them.
04:38So, let's define it.
04:43What is a scalar sign?
04:50So we can say
04:51that this one will be
04:52negative.
05:02Then,
05:06delta, delta, delta, delta, delta.
05:10So, zeta bol de silam ze a ma del adik rashi zeta ase zeta eta man thagbe, ok? ta mani
05:17ze vector rashi ase tara ta ki thagbe? tara eta man thagbe, tara eta man thagbe, tara
05:25eta man thagbe, ok?
05:27We will not have a right hand side in the case of a right handed person and a left handed person will have a right hand side in the case of a left handed person.
05:52In this way, we get the basic idea that there is a right hand side in the case of a right handed person and there is a left hand side in the case of a left handed person.
06:02In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
06:22In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a left handed person.
06:52In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
07:22In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
07:52In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
08:22In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
08:52In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
09:22In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
09:52In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
10:22In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
10:42In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
11:12In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
11:42In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
12:12In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
12:42In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
13:12In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
13:32In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
14:02In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
14:32In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
14:52In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
15:22In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
15:42In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
16:12In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
16:42In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
17:02In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
17:32In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
18:02In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
18:32In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
19:02In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
19:32In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
20:02In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
20:32In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
21:02In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
21:32In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
22:02In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
22:32In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
23:02In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
23:32In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
23:52In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
24:22In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
24:52In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
25:22In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
25:52In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
26:22In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
26:52In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
27:22In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
27:52In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
28:22In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
28:52In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
29:22In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
29:52In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
30:22In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
30:52In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
31:22In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
31:52In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
32:22In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
32:52In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
33:22In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
33:52In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
34:22In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
34:47In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
35:17In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
35:47In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
36:17In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
36:47In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
37:17In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
37:47In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
38:12In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
38:35In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
39:05In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
39:35In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
39:50In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
40:15In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
40:45In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
41:15In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
41:45In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
42:15In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
42:45In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
43:15In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
43:45In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
44:15In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
44:45In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
45:15In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
45:45In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
46:03In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
46:23In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
46:53In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
47:23In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
47:53In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
48:23In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
48:53In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
49:06In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
49:31In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
49:56In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
50:26In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
50:56In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
51:26In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
51:56In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
52:26In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
52:51In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
53:21In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.
53:22In this way, we get the basic idea that there is a right hand side in the case of a left handed person and there is a left hand side in the case of a right handed person.