2 blocks are sliding to the right across a horizontal surface. In case A, the mass of each block is 3.0 kg. In case B, the mass of block 1 is 6.0 kg and the mass of block 2 is 3.0 kg. No frictional force acts on block 1 in either case A or case B. However, a kinetic frictional force of 5.8 N does act on block 2 in both cases and opposes the motion. For both case A and case B.
(a) Derive an expression for the contact force and acceleration.
(b) Determine the magnitude of the contact force and acceleration