What is the average frictional force

Reference no: EM13302763

A 1000 kg roller coaster car starts from rest from a hilltop 60.0 m above the ground and moves (without power) down and then up a second hill to a height of only 45.0 m before coming to a stop. If the total distance traveled by the car is 320 m, what is the average frictional force between the car's wheels and the track?

Reference no: EM13302763

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