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Question

A particle moves in a circle of radius 5m with an angular speed of 2rad/s. What is its centripetal acceleration?

Options

Choose one · Correct answer highlighted

Explanation

Centripetal acceleration ac=ω2R. As per NCERT Chapter 3, equations v=u+at, s=ut+½at², v²=u²+2as describe uniformly accelerated motion. Applying correct signs and units gives 20 m/s² as the result, so option B is correct.

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