Problem: Three identical 6.0-kg cubes are placed on a horizontal frictionless surface in contact with one another. The cubes are lined up from left to right and a force is applied to the left side of the left cube causing all three cubes to accelerate to the right at 2.0 m/s2.
Part A: What is the magnitude of the force exerted on the middle cube by the left cube in this case?
Thank you for any help you can give me to find the magnitude of the force exerted on the middle cube by the left cube in this case.