Practice question

MCQ

Question

A particle in circular motion has a centripetal acceleration of 64m/s2 and radius 4m. What is its speed?

Options

Choose one · Correct answer highlighted

12 m/s 20 m/s 16 m/s Correct 8 m/s

Explanation

Centripetal acceleration a_c=v²/r=4π²r/T²=4π²rf² per NCERT circular motion. Substituting r and frequency/period gives a_c value matching 16 m/s. Other options use incorrect r or f, so C is correct.

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