Vectors Class 11 | Motion in a plane - Physics NEET JEE CBSE 

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Timestamps:
0:00 Introduction
0:42 Motion in a Plane
2:34 Scalar & Vector
5:14 Scalar & vector:Representation
8:59 Vectors in real life
10:18 Combination of Scalars
11:42 Combination of Vectors
14:27 Combination of Vectors:Addition
16:24 Combination of Vectors:Subtraction
17:44 Parallelogram Law of Vector Addition
20:18 Properties of Vector Arithmetic
22:30 Zero or Null Vector
23:46 Vector Multiplication by a scalar.
25:33 Equal Vectors
26:03 Unit Vectors
30:47 Resolution of vectors
35:54 Vector Addition:Analytical Method
39:46 What if angle is not 90^0
A vector is a quantity that has both a magnitude and a direction. Geometrically, we can picture a vector as a directed line segment, whose length is the magnitude of the vector and with an arrow indicating the direction. The direction of the vector is from its tail to its head. There are different types of vectors: - Zero Vector, Null Vector, Unit Vector, Equal Vectors. Vectors can be added by triangle law of vectors or parallelogram law of vectors. Vectors can be added and subtracted. Unit vector is also known as directional vector. Vectors can be resolved into their component vectors along unit vectors. The Law of Sines is the relationship between the sides and angles of non-right triangles. It states that the ratio of the length of a side of a triangle to the sine of the angle opposite that side is the same for all sides and angles in a given triangle. The law of cosines allows us to find angle (or side length) measurements for triangles other than right triangles.In this video we will cover:
1.Introduction to motion in a plane?
2.What are scalar & vector quantities?
3.How to represent both scalars and vector quantities?
4.Examples of vetors in our real life.
5.Operations on Scalars.
6.What is Parallel shift in vectors?
6.Triangle law of addition of 2 vectors ?
7.How to subtract vectors?
8.Commutative Property of Vectors.
9.Associative property of vectors.
10.Multiplying a vector with a negative scalar.
11.What are equal vectors?
12. Why unit vetors are so important?
13.Directional Vectors.
14.How to resolve two vectors in terms of each other?
15.Analytical method of addition of vectors.
16.Law of sines
17.Law of cosines.
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