Asked by mssailormouth
A roller coaster with people on board has a total mass of 4500 kg and starts at a height of 22 meters with a speed of 2.0 m/s. 50 kJ of work is done by friction on the way to the bottom of the ride. What is the speed at the bottom of the ride?
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Answered by
mssailormouth
20
Answered by
R_scott
similar technique as previous question
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