A 1200 kg roller coaster car starts at point A, then travels 165 ft at 40.0° below the horizontal to point B. (a) Taking point B to be the level where the gravitational potential energy of the car-Earth system is zero, what is the potential energy (in J) of the system when the car is at points A and B, and the change in potential energy (in J) as the coaster moves between these points? at point A at point B change in potential energy J (b) Repeat part (a), setting the zero configuration with the car at point A. at point A J at point B J change in potential energy J

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A 1200 kg roller coaster car starts at point A, then travels 165 ft at 40.0° below the horizontal to point B.
(a) Taking point B to be the level where the gravitational potential energy of the car-Earth system is zero, what is the
potential energy (in J) of the system when the car is at points A and B, and the change in potential energy (in J) as
the coaster moves between these points?
at point A
at point B
change in potential energy
J
(b) Repeat part (a), setting the zero configuration with the car at point A.
at point A
J
at point B
J
change in potential energy
J
Transcribed Image Text:A 1200 kg roller coaster car starts at point A, then travels 165 ft at 40.0° below the horizontal to point B. (a) Taking point B to be the level where the gravitational potential energy of the car-Earth system is zero, what is the potential energy (in J) of the system when the car is at points A and B, and the change in potential energy (in J) as the coaster moves between these points? at point A at point B change in potential energy J (b) Repeat part (a), setting the zero configuration with the car at point A. at point A J at point B J change in potential energy J
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