An engineer draws a diagram of the track for a rollercoaster. The first hill is labeled at position A, and the track ends at position F. How does the gravitational potential energy of the rollercoaster change as it travels between the following points? Select the correct answer for each description. *

To practice problem-solving strategy 10.1 for energy conservation problems. a sled is being held at rest on a slope that makes an angle θ with the horizontal. after the sled is released, it slides a distance d1 down the slope and then covers the distance d2 along the horizontal terrain before stopping. find the coefficient of kinetic friction μk between the sled and the ground, assuming that it is constant throughout the trip.