A roller coaster is at rest on the top of a 30m hill(point A).The car starts to roll down the hill and reaches point B which is 10m above the ground then rolls up the track to point C which is 20m above the ground. A).A student assumes no energy is lost a d solves for how fast the car is moving at point C using energy argument. What answer did he get? B).if the final speed at C is actually measured with a sonar gun and is fo
A roller coaster is at rest on the top of a 30m hill(point A).The car starts to roll down the hill and reaches point B which is 10m above the ground then rolls up the track to point C which is 20m above the ground. A).A student assumes no energy is lost a d solves for how fast the car is moving at point C using energy argument. What answer did he get? B).if the final speed at C is actually measured with a sonar gun and is fo
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A roller coaster is at rest on the top of a 30m hill(point A).The car starts to roll down the hill and reaches point B which is 10m above the ground then rolls up the track to point C which is 20m above the ground.
A).A student assumes no energy is lost a d solves for how fast the car is moving at point C using energy argument. What answer did he get?
B).if the final speed at C is actually measured with a sonar gun and is found to be 2m/s .what % of the energy was not conserved?what happened to the energy?
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