2. a) b) d) A hand pushes two blocks, block A and block B, along a frictionless table for a distance d. The mass of block A is greater than the mass of block B (mg > me). Draw a free body diagram for each block and identify any action-reaction pairs, connecting them with a dotted line. Free-body diagram Free-body diagram for block A for block B frictionless table Does block A do work on block B? Does block B do work on block A? If each block does work on the other, how do the works compare in magnitude and in sign? Explain. How does the net force (now including all external forces) on block A compare to the net force on block B? Explain. What does your result suggest about how the net work done on block A compares to the net work done on block B? Explain. How do the final kinetic energies of the blocks compare? Base your answer on the work- energy theorem and your answer to part b above. When the hand starts to push, the blocks are moving with a speed of 2 m/s. Suppose that the work done by the hand during a given displacement is 10 .l. Determine the nal kinetic energy of each block. Use MA = 4 kg and m3 = 1 kg. Show your work