If two blocks having mass (m1) and (m2) are pushed with a force F on a frictionless surface and begin moving with a uniform acceleration 'a', what would be the force between the two blocks?
2 blocks (top 3kg, bottom 4kg) slide uniformly at a constant acceleration of 1.2 due to a force on the upper block. Kinetic friction between the lower block and the floor is .2. What is the max coefficient of static friction between the blocks and what is this maximum force?