A battery-powered toy car pushes a stuffed rabbit across the floor. Block A in Figure EX7.5 is heavier than block B and is sliding down the incline. All surfaces have friction. The rope is massless, and the massless pulley turns on frictionless bearings. The rope and the pulley are among the interacting objects, but you’ll have to decide if they’re part of the system.

a. Draw an interaction diagram, following the steps of Tactics.

b. Identify the “system” on your interaction diagram.

c. Draw a free-body diagram for each object in the system. Use dashed lines to connect the members of an action/reaction pair.