Three boxes are in contact with each other on a frictionless horizontal surface as shown. The masses of the boxes are ml = 10 kg, m2 = 20 kg, and m3 = 30 kg. A horizontal force F = 90 N is applied to ml. Calculate.
a. The acceleration of the three boxes.
b. The net force on each box.
c. The contact forces between the boxes.
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This solution provides steps to calculate acceleration, net force and contact force.