A box of mass 50 kg at rest is pulled up on an inclined plane 12 m long and 2 m 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 50 kg at rest is pulled up on an inclined plane 12 m lon

1.	A box of mass 50 kg at rest is pulled up on an inclined plane 12 m long and 2 m 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