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Friction

A cubical blo...

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A cubical block of mass M and side a is placed on a rough horizontal plane . A force F is acting on the block at height 3a/4 from the bottom. The minimum value of coefficient of friction(μ) such that block topples without sliding will be-1) 2/3, 2)1/2, 3)3/4, 4)1/3

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