Question

A 4.0 kg block is pushed 4.2 m up a rough 37° inclined plane by ahorizontal force of 75 N. If the initial speed of the block is 2.2m/s up the plane and a constant kinetic friction force of 25 Nopposes the motion, calculate the following.
(a) the initial kinetic energy of the block
J
(b) the work done by the 75 N force
J
(c) the work done by the friction force
J
(d) the work done by gravity
J
(e) the work done by the normal force
J
(f) the final kinetic energy of the block
J