A body of mass 40kg resting on a rough h...

A body of mass 40kg resting on a rough horizontal surface is subjected to a force `P` which is just enough to start the motion of the body. If `mu_(s)=0.5mu_(k)=0.4 , g=10ms^(-2)` an dthe force `P` is continuously applied on the body, then the accceleration of the body is.

zero

`1m//s^2`

`2m//s^2`

`2.4 m//s^2`

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