Work done by a centripetal force:

increases by decreasing the radius of the circle

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decreases by increasing the radius of the circle

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increases by increasing the mass of the body

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is always zero

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Solution

The correct option is D is always zero
Work done by a centripetal force is always zero as centripetal force always act perpendicular to the direction of motion.

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Work done by a centripetal force:

The correct option is D is always zeroWork done by a centripetal force is always zero as centripetal force always act perpendicular to the direction of motion.

The correct option is D is always zero
Work done by a centripetal force is always zero as centripetal force always act perpendicular to the direction of motion.