A horizontal force just sufficient to mo...

A horizontal force just sufficient to move a body of mass `4 kg ` lying on a rought horizontal surface is applied on it .The coefficient of static and kinetic friction the body and the surface are `0.8 and 0.6` respectively If the force contines to act even after the block has started moving the acceleration of the block in `ms^(-2)` is `(g = 10 ms^(-2))`

`1/4`

`1/2`

`2`

`4`

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The correct Answer is:

`2`

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