Two blocks of mass m1=2.4 kg, and m2=1.2 kg are in contact on a frictionless table. Block m2 sits to the right of block m1. A horizontal force to the right of F=3.2 N is applied to block m1. Find:
  1. the acceleration of the system, and
  2. the `force of contact' between the blocks.
  3. What is the force of contact if the horizontal force F is applied towards the left to block m2 instead of block m1?
  4. Does it make sense that the contact force is not the same in (b) and (c)?

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