Three blocks on a frictionless horizontal surface are in contact with each other.

A force F is applied to the first block.

a) What is the acceleration of the system? [1 point]

b) What are the forces of contact between the first and second block, and the

second block and third block? [2 points]

c) What is the net force acting on each block? [2 points]

Choose |F| = 12N, m₁ = 2.3kg, m₂ = 1.2kg and m₃ = 3.7kg.