Q 1108880708.     A cubical block of side L rests on a rough horizontal surface with coefficient of friction µ. A horizontal force F is applied on the block as shown.

If the coefficient of friction is sufficiently high, so that the block does not slide before toppling, the minimum force required to topple the block is


JEE-MIS
A

`mg (1 - µ)`

B

`mg//2`

C

`mg//4`

D

None of these.

HINT

At the critical condition, normal reaction N will pass through the rightmost edge of block (say point P). So wrt point P, torque due to friction and normal reaction will be zero.

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