Before beginning its initial descent, a roller coaster car is
always pulled up the first hill to a high initial height. Work is
done on the car (usually by a chain) to achieve this initial
height. A coaster designer is considering three different angles
at which to drag the 2000-kg car train to the top of the 60-
meter high hill. Show your answers and explain.
Answers: 1
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Before beginning its initial descent, a roller coaster car is
always pulled up the first hill to a...
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