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[" 4.A uniform cylinder of radius ' "r" ...

[" 4.A uniform cylinder of radius ' "r" 'length ' "L" ' and "],[" mass 'm' is lying on the ground with the "],[" curved surface touching the ground.If it is to "],[" be oriented on the ground with the flat "],[" circular end in contact with the ground,the "],[" work to be done is "],[" 1) "mg[(L/2)-r]2)mL[(g/2)-r]" 3) "mr(gL-1)" 4) mgle "]

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