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A uniform cylinder of radius 'r' length...

A uniform cylinder of radius `'r'` length `'L'` and mass `'m'` is lying on the ground with the curved surface touching the ground. F it is to be oriented on the ground with the flat circular end in contact with ground, the work to be done is

A

`mg[(L/2)-r]`

B

`mL[(g/2)-r]`

C

`mr(gL-1)`

D

`mgLr`

Text Solution

Verified by Experts

The correct Answer is:
`(1)`
`W = U_(i) - U_(f), where U_(i) = mgh_(1), U_(f) = mgh_(2), therefore W = mg(h_(1)-h_(2))`
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NARAYNA-WORK , ENERGY & POWER -EXERCISE - 1 (C.W)
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