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Question

A particle in uniform circular motion has a radius of 10m and completes 4 revolutions in 8s. What is its centripetal acceleration?

Options

Choose one · Correct answer highlighted

Explanation

Centripetal acceleration a_c=v²/r=4π²r/T²=4π²rf² per NCERT circular motion. Substituting r and frequency/period gives a_c value matching 0.5 Hz. Other options use incorrect r or f, so A is correct.