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Question

Question: A particle moves in a circle of radius 0.25 m at two revolutions per second. The acceleration of the...

A particle moves in a circle of radius 0.25 m at two revolutions per second. The acceleration of the particle in metre second2 is –

A

p2

B

8p2

C

4p2

D

2p2

Answer

4p2

Explanation

Solution

ac = w2r = (2p × 2)2 × 0.25 m