If a body of mass m is rotating in a circle of radius r with frequency of rotation f then centripetal Force acting on it is
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3
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Since, centripetal acceleration
a
c
=
r
v
2
=rω, because v=rω.
Work done, W=
F
⋅
r
, where
r
is the displacement vector.
As particle is under uniform circular motion,
F
⊥
r
. So, W=
F
⋅
r
=
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