A body of mass 60 kg is pushed up with j...

A body of mass 60 kg is pushed up with just enough force to start in moving on a rough surface with `mu_(S)=0.5` and `mu_(K)=0.4` and the force continues to act afterwards. What is the acceleration of the body is

`14.7 ms^(-2)`

`1.96 ms^(-2)`

`0.98 ms^(-2)`

`4.9 ms^(-2)`

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