Solved: Predict/Explain You push two identical bricks
Chapter 6, Problem 1(choose chapter or problem)
Predict/Explain You push two identical bricks across a tabletop with constant speed, v, as shown in Figure 616. In case 1, you place the bricks end to end; in case 2, you stack the bricks I. The normal force in case 2 is larger, and hence the bricks press down more rmly against the tabletop. II. The normal force is the same in the two cases, and friction is independent of surface area. III. Case 1 has more surface area in contact with the tabletop, and this leads to more friction.
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