Physics, 12.02.2021 14:00 harris435942
A 1000 kg roller coaster is at the top of a 20 m hill initially moving at 5 m/s. It goes down the hill to ground level, then up a hill that is 10 m high, and then back down to 5 m above ground level. There is no friction between the roller coaster and the track.
Calculate:
a) Initial Mechanical Energy of the Roller Coaster
b) the velocity of the roller coaster at the bottom of the 20 m hill (ground level)
Answers: 1
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Physics, 22.06.2019 13:40
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Aheavy boy and a lightweight girl are balanced on a massless seesaw. the boy moves backward, increasing his distance from the pivot point. what happens to the seesaw? it is impossible to predict without knowing additional information. the side the boy is sitting on will tilt downward. the side the girl is sitting on will tilt downward. nothing; the seesaw will remain balanced.
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A 1000 kg roller coaster is at the top of a 20 m hill initially moving at 5 m/s. It goes down the hi...
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