Question : A particle is moving with a constant speed 𝑣 in a circle. What is the magnitude of average after half rotation?
(A) 2v
(B) 2\dfrac{v}{\pi }
(C) \dfrac{v}{2}
(D) \dfrac{v}{2\pi}
Answer : option (B)
Solution :

Question : A particle is moving with a constant speed 𝑣 in a circle. What is the magnitude of average after half rotation?
(A) 2v
(B) 2\dfrac{v}{\pi }
(C) \dfrac{v}{2}
(D) \dfrac{v}{2\pi}
Answer : option (B)
Solution :