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A body of mass M is kept n a rough horiz...

A body of mass M is kept n a rough horizontal surfasce (friction coefficient `=mu`). A person is trying to pull he body by applying a horizontal force but the body is not moving. The force by the surface on A is F, where

A

F = Mg

B

`F = mu Mg`

C

`Mg ge Fle Mg sqrt( 1+ mu^(2))`

D

`Mg ge F ge Mg sqrt( 1- mu^(2))`

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The correct Answer is:
C
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