Physics, 27.06.2020 03:01 James300102
Builders are testing a roller-coaster. The cart starts at rest at the top of a hill 40 m above the height of the dip below. The builders find that the cart reaches a height of only 25 m above the dip on the second hill where it momentarily stops. The total distance traveled is 400 m along the track. The cart’s mass is 1000 kg. What was the average friction force during the journey?
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Builders are testing a roller-coaster. The cart starts at rest at the top of a hill 40 m above the h...
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