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A 1332 kg car pulls a 237 kg trailer. The car exerts a 3724 N horizontal...

A 1332 kg car pulls a 237 kg trailer. The car exerts a 3724 N horizontal force against the ground in order to accelerate. Both the car and trailer feel a retarding friction force of 730 N opposing their motion.
(a) What is their acceleration?
(b) What is the tension in the cable connecting them?

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