A body of mass 10 kg is sliding down a ...

A body of mass 10 kg is sliding down a rough inclined plane which makes an angle of `30^@` with the horizontal. If the coefficient of friction is 0.25, what is the acceleration of the body ?

`1.39 m s^(-2)`.

`2.78 m s^(-2)`.

`3.65 m s^(-2)`.

`5.56 m s^(-2)`.

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