A small 0,50-kg box is launched from rest by a horilontal spring as shown in the figure below. The block slides on a track down a hill and comes to rest at a distance L1 from the base of the hill. The coefcient of kinetic friction between the box and the track is 0.36 along the entire track. The Spring has a Spring constant of 33.0 N/m and is compressed 304] cm with the box attached. The block remains on the track at all times |o30.o emal Fd= ?~l (a) What would you include in me system? Explain your choice, \" This answer has not been graded yel. (b) Calculate d. :m (c) compare your answer with a similar situation where the inclined pan of the (rack is frictionless. \" This answer has nm been graded yel