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A 1290 -kg car is pushing an out-of-gear 2140 -kg truck that has a dead battery....

A 1290 -kg car is pushing an out-of-gear 2140 -kg truck that has a dead battery. When the driver steps on the accelerator, the drive wheels of the car push horizontally against the ground with a force of 4600 N . The rolling friction of the car can be neglected, but the heavier truck has a rolling friction of 770 N , including the "friction" of turning the truck's drivetrain.

What is the magnitude of the force the car applies to the truck? What is the acceleration aT of the truck?

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Answer #1

m = 1290 kg m = 240 kg F=4600 N f = 770 N The net force on the system that - F - fx Free = 4600 N - 770N Free = 3830 N Fret a

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