Practice question

MCQ

Question

For an object in uniform circular motion, what happens if the centripetal force suddenly disappears?

Options

Choose one · Correct answer highlighted

It spirals outward It moves in a straight line tangentially Correct It stops immediately It moves towards the center

Explanation

Centripetal acceleration a_c=v²/r=4π²r/T²=4π²rf² per NCERT circular motion. Substituting r and frequency/period gives a_c value matching It moves in a straight line tangentially. Other options use incorrect r or f, so B is correct.

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