Question

A 1290 kg car is pushing an out-of-gear 2200 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 4500 N. The rolling friction of the car can be neglected, but the heavier truck has a rolling friction of 750 N, including the "friction" of turning the truck's drivetrain. What is the magnitude FConT of the force that the car exerts on the truck? Use the coordinate system, where upward is the positive y direction and to the right, the direction FConT points, is the positive x direction.

          A 1290 kg car is pushing an out-of-gear 2200 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 4500 N. The rolling friction of the car can be neglected, but the heavier truck has a rolling friction of 750 N, including the "friction" of turning the truck's drivetrain.
What is the magnitude FConT of the force that the car exerts on the truck? Use the coordinate system, where upward is the positive y direction and to the right, the direction FConT points, is the positive x direction.

Added by Kathy T.

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