Physics, 30.10.2019 20:31 triggercell
A1500 kg car begins sliding down a 5.0o 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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A1500 kg car begins sliding down a 5.0o inclined road with a speed of 30 km/h. the engine is turned...
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