Question

Block A in (Figure 1) weighs 1.30 N , and block B weighs 3.70 N . The coefficient of kinetic friction between all surfaces is 0.310. |Part A| Find the magnitude of the horizontal force F⃗ necessary to drag block B to the left at constant speed if A rests on B and moves with it (figure (a)). Express your answer with the appropriate units. |Part B| Find the magnitude of the horizontal force F⃗ necessary to drag block B to the left at constant speed if A is held at rest (figure (b)). Express your answer with the appropriate units.

Answer 1