**Question :** A particle moves in circle of radius 25 cm at the rate of two revolutions per second. The acceleration of particle is

(A) 2\pi ^{2}ms^{-2}

(B) 4\pi ^{2}ms^{-2}

(C) 8\pi ^{2}ms^{-2}

(D) \pi ^{2}ms^{-2}

**Answer :** option (B)

**Solution :**

with
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**Question :** A particle moves in circle of radius 25 cm at the rate of two revolutions per second. The acceleration of particle is

(A) 2\pi ^{2}ms^{-2}

(B) 4\pi ^{2}ms^{-2}

(C) 8\pi ^{2}ms^{-2}

(D) \pi ^{2}ms^{-2}

**Answer :** option (B)

**Solution :**