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Solve the all parts of given question:

Question: A 1500 kg trailer is being pulled by a truck at a speed of 60 km/h.

Part A: What is the trailer's kinetic energy (in J)?

Part B: Now the truck speeds up so that the trailer's kinetic energy doubles. What is the trailer's new speed?

Part C: if the truck and trailer covered a distance of 170 m while they were accelerating, what was the magnitude of the average force exerted by the truck on the trailer? You may ignore friction and air resistance. (HINT: use energy, NOT kinematics)

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