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1. A small car of mass 645 kg is parked behind a small truck of mass 1754 kg on a level road. The brakes of both the car and the truck are off so that they are free to roll with negligible friction. A 88 kg woman sitting on the tailgate of the truck shoves the car away by exerting a constant force on the car with her feet. The car accelerates at 1.2 m/s 2 .

a)What is the acceleration of the truck? Answer in units of m/s 2

b)What is the magnitude of the force exerted on the car? Answer in units of N

2. A 2.70 kg block is in equilibrium on an incline of 34.8? . The acceleration of gravity is 9.81 m/s 2 . What is Fn of the incline on the block? Answer in units of N.

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