A roller coaster is at the top of a hill and rolls to the top of a lower hill if mechanical energy is constant then on the top of which hill is the kinetic energy from the roller coasters motion greater

The potential energy of the cars is at its maximum at the start and the end of the trip. Potential energy approaches zero when the cars are near the ground at the lowest point on the tracks. The kinetic energy of the cars is zero at the start and the end of the trip because the cars aren’t moving. Kinetic energy is at its maximum when the cars are at the lowest point on the track after racing down the hill.

Rewriten answer:

The expected energy of the vehicles is at its greatest toward the beginning and the finish of the excursion. Potential energy approaches zero when the vehicles are close to the ground at the absolute bottom on the tracks. The motor energy of the vehicles is zero toward the beginning and the finish of the excursion in light of the fact that the vehicles aren't moving. Active energy is at its greatest when the vehicles are at the absolute bottom on the track subsequent to dashing down the slope.

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