Repost-Physics 1

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Two railroad cars, each of mass 2.2 104 kg, are connected by a cable to each other, and the car in front is connected by a cable to the engine as shown in the figure below. The cars start from rest and accelerate to a speed of 1.7 m/s after 1 min.
a)Find the work done by cable 1 on the car in the back. ____J
b)Find the work done by cable 1 on the car in front. _____J
c)Find the work done by cable 2 on the car in the front. _____J

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