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A simple pendulum of length l has a maxi...

A simple pendulum of length l has a maximum angular displacement `theta`. The maximum kinetic energy of the bob of mass m will be

A

`mgl(1+costheta)`

B

`mal(1+cos^(2)theta)`

C

`mgl(1-costheta)`

D

`mgl(costheta-1)`

Text Solution

Verified by Experts

The correct Answer is:
C
KE=PE
`(1)/(2)mv^(2)=mgh`
`KE_(max)=mgh(1-costheta)`
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