Correct Answer - D
Let a body which has mass `m` is placed on an inclined plane whose inclination is greater than angle of repose. The force on the body down the inclined plane is given by
`F= mg sin theta- mu R`
`ma= mg sin theta-mu mg cos theta`
or `a= g sin theta-mu g sin theta`
`= g(sin theta-mu cos theta)`....(i)
It is obvious from Eq. (i) that
`altg`