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Question
A body of mass 10 kg is moving on a circular track of radius 15 m. What is work done by the centripetal force on it in one complete revolution? (Take g = 10 m/s2)
A body of mass 10 kg is moving on a circular track of radius 15 m. What is work done by the centripetal force on it in one complete revolution? (Take g = 10 m/s2)
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Solution
The correct option is A Zero
Since the body is moving on a circular track, force is always perpendicular to the displacement at every moment of its motion. We know that when force and displacement are perpendicular to each other, work done by the force will be 0. So, the work done by the centripetal force on it in one complete revolution is zero.
Zero
Since the body is moving on a circular track, force is always perpendicular to the displacement at every moment of its motion. We know that when force and displacement are perpendicular to each other, work done by the force will be 0. So, the work done by the centripetal force on it in one complete revolution is zero.
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