A 30 kg box has to move up an inclined slope of `30^@` to the horizontal at a uniform velocity of 5 `ms^(-1)`. If the frictional force retarding the motion is 150N, the horizontal force required to move up is (g=10 `ms^(-2)`)

Options

A. `300 xx (2)/(sqrt3) N`
B. `300 xx (sqrt3)/(2) N`
C. `300 N`
D. `150 N`

Answer

A