Question

Q2. In the adjoining vector diagram, what is the angle between A and B ?

(Given : C = b/2 )

(A) 30° (C) 120° (B) 60° (D) 150°​

Answer 1

Hey Dear,

◆ Answer -

(A) 30°

◆ Explanation -

Given vector traingle is right angled triangle.

In right angled triangle,

sinθ = opposite side / hypotenuse

sinθ = |C| / |B|

sinθ = (B/2) / B

sinθ = 1/2

Taking sine inverse on both sides -

θ = arcsin(1/2)

θ = 30°

Therefore, angle between vector A & B is 30°.

Hope this is helpful..

Answer 2

Explanation:

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