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A rod of length 1.0 m and mass 0.5 kg fi...

A rod of length `1.0 m` and mass `0.5 kg` fixed at one end is initially hanging vertical. The other end is now raised until it makes an angle `60^@` with the vertical. How much work is required?

A

mgl

B

`(mgl)/(8)`

C

`(mgl)/(6)`

D

`(mgl)/(4)`

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The correct Answer is:
D
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