Block A in Fig. P5.73 weighs 2.40 N and block B weighs 3.60 N. The coefficient of kinetic friction between all surfaces is 0.300. Find the magnitude of the horizontal force necessary to drag block B to the left at constant speed

(a) If A rests on B and moves with it (Fig. P5.73a).

(b) If A is held at rest (Fig. P5.73b).

Figure P5.73:

(a)

(b)

Transcribed Image Text:

A B.