a 5.0 kg block is set into motion up an inclined plane as shown in the figure with an initial speed of 8.0 m/s. the block comes to rest after traveling 3.0 m along the plane. a. determine the change in kinetic energy. b. determine the change in potential energy. c. determine the frictional force on the block (assumed to be constant). d. what is the coefficient of kinetic friction?