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Why is the work done by a centripetal fo...

Why is the work done by a centripetal force equal to zero?

A

increases by decreasing the radius of the circle

B

decreases by increasing the radius of the circle

C

increases by increasing the mass of the body

D

is always zero

Text Solution

Verified by Experts

The correct Answer is:
D
`W = vec(F).vec(S) = " FS cos " 90^(@)` = 0
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