Q2 of 73 Page 447

Find the angle between the vectors

Given vectors are


Let





=



∴ We know,


⇒


⇒


⇒ cos θ = 10/14


⇒ θ = cos-1(5/7)


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19

are two collinear vectors, then which of the following are incorrect:

(a)


(b)


(c) the respective components of are not proportional


(d) both the vectors have same direction, but different magnitudes.

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Find the angle between two vectors with magnitudes √3 and 2 respectively having

3

Find the projection of the vector on the vector

4

Find the projection of the vector on the vector