**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 :**

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**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 :**