Chapter 4, Problem 13MCP

A person pushes two Poxes with a horizontal 100 N force on a frictionless floor, as shown in Figure 4.33. Box A is heavier than box B. Which of the following statements about these boxes is correct?

Figure 4.33

Multiple-Choice Problem 13.

1. A.    Box A pushes on box B with a force of 100 N. and box B pushes on box A with a force of 100 N.
2. B.     Box A pushes on box B harder than box B pushes on box A.
3. C.     Boxes A and B push on each other with equal forces of less than 100 N.
4. D.    The boxes will not begin to move unless the total weight of the two boxes is less than 100 N.