Shanika is an engineer at an amusement park who is experimenting with changes to the setup for a magnetic roller coaster ride. In one ride, there are two identical roller coaster cars (orange and green) that start on opposite sides of a large magnet located at the center of a station. Shanika wants to get the largest increase in potential energy she can by moving one car one space to the left or the right.

Shanika can move the orange car to point A or point B, or she can move the green car to point C or point D. Which movement should she make? Why will that movement result in the largest increase in potential energy? Describe the magnetic force that will act on the roller coaster car she moves.

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oeerivona oeerivona · Answer 1 · 2021-12-04T19:16:12+01:00

Potential energy is the energy possessed by the cars due to their location

relative to the large magnet at the enter.

The correct responses are;

Second part: The total potential energy is double the potential energy acting on one car.

Reasons:

The potential energy of the magnet increases with the increase in the

magnetic field intensity. The magnetic field intensity increases with

proximity of the car to the large magnet.

Therefore, to get the largest potential energy, Shanika should move the

cars closer to the large magnet.

First Part: Shanika should move both the orange car to B and the green

car to C, closer to the large magnet.

Second part: The movement would result in the largest increase in

potential because the potential energy of both cars are increased, which

doubles the total potential energy increase.

Third part: The poles of the large magnet and the adjacent car are like

poles and in a magnet, like poles repel each other.

Therefore, as she moves the cars closer to the large magnet, the magnetic

force tends to push the cars away in the opposite direction away from the

large magnet.

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