Physics, 20.04.2021 23:40 SavageKidKobe

As shown below, a 450-kg roller-coaster car starts from rest at point A at a height of 47 m the track, reaching point B and then rolls up a second hill where it reaches a height of 23 m at point C). What are the gravitational potential energy and kinetic energy of the car when it is at points A, B, and C? What are the velocities at point B and C?

As shown below, a 450-kg roller-coaster car starts from rest at point A at a height of 47 m the tra

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As shown below, a 450-kg roller-coaster car starts from rest at point A at a height of 47 m the trac...