Physics
Physics, 31.05.2020 03:02, quentonwise

You are testing a new amusement park roller coaster with an empty car with mass 127 kg. One part of the track is a vertical loop with radius 11.8 m. At the bottom of the loop (point A) the car has speed 27.1 m/s, and at the top of the loop (point B) it has speed 8.9 m/s. As the car rolls from point A to point B, how much work is done by the friction

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You are testing a new amusement park roller coaster with an empty car with mass 127 kg. One part of...

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