A 1500 kg car begins sliding down a 5.00 inclined road
Chapter , Problem 79(choose chapter or problem)
A 1500 kg car begins sliding down a 5.00 inclined road with a speed of 30 km/h. The engine is turned off, and the only forces acting on the car are a net frictional force from the road and the gravitational force. After the car has traveled 50 m along the road, its speed is 40 km/h. (a) How much is the mechanical energy of the car reduced because of the net frictional force? (b) What is the magnitude of that net frictional force?
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