Two blocks are sliding to the right across a horizontal surface, as the drawing shows. Block 1 Block 2 m Case A m Block 1 m Case B Block 2 m2 In Case A the mass of each block is m = m2 = 4.8 kg. In Case B the mass of block 1 (the block behind) is m = 9.6 kg, and the mass of block 2 is m2 = 4.8 kg. No frictional force acts on block 1 in either Case A or Case B. However, a kinetic frictional force of 9.4 N does act on block 2 in both cases and opposes the motion. For both Case A and Case B determine (a) the magnitude of the forces with which the blocks push against each other and (b) the magnitude of the acceleration of the blocks. (a) Case A P = Case B P (b) Case A Case B a = Hi = i 10 a = >