Block A with weight 3w, slides down an inclined plane S of slope angle 36.9° at a constant speed while plank B, with weight w, rests on top of A. The plank is attached by a cord to the wall (Fig. 5.75).
(a) Draw a diagram of all the forces acting on block A.
(b) If the coefficient of kinetic friction is the same between A and B and between S and A, determine its value.

Transcribed Image Text:

36.9°