Physics, 25.06.2019 05:30 joelpimentel
Aroller coaster car is elevated to a height of 30 m and released from rest to roll along a track. at a certain time t it is at a height of 2 m and has lost 25.000 j of energy to friction. the car has a mass of 800 kg. answer the following questions. (a) how fast is the car going at time t? (b) how fast would the car be going at time t if the track were frictionless?
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Aroller coaster car is elevated to a height of 30 m and released from rest to roll along a track. at...
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