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