Vectors

Physics SS1 First Term
WEEK 9
Vectors 
Performance Objectives
Students should be able to:
1. Show the various addition of Vectors
2. Describe the resolution of Vector

Content
Addition of Vectors and Scalars

Scalars can be added algebraically. However, vectors do not obey the ordinary laws of algebra. This is because vectors possess both magnitude and direction. Vectors are added geometrically. The process of adding two or more vectors is known as addition or composition of vectors. When two or more vectors are added, the result is a single vector called the resultant vector.
The resultant of two or more vectors is that single vector which alone produces the same effect as that produced by the two individual vectors.

Three laws have been evolved for the addition of vectors:
1. Triangle law of vectors for addition of two vectors
2. Parallelogram law of vectors for addition of two vectors
3. Polygon law of vectors for addition of more than two vectors

Triangle law of Vectors
Let a particle be at the points A, B, C at three successive times t,.... View More

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