A box of mass 50kg at rest is pulled up on an inclined plane 12m long and 2m high by a constant force of 100N. When it reaches the top of the inclined plane if its velocity is 2ms^(-1) , the work done against friction in Joules is (g = 10ms^(-2))

A box of mass 50kg at rest is pulled up on an inclined plane 12m long

1.	A box of mass 50kg at rest is pulled up on an inclined plane 12m long and 2m high by a constant force of 100N. When it reaches the top of the inclined plane if its velocity is 2ms^(-1) , the work done against friction in Joules is (g = 10ms^(-2))
Answer» 50 100 150 200 Answer :B