Question

According to the author, what effect do the cart's wheels have on most roller coasters?

Answer 1

The Cartwheels cause friction.

Option A.

Explanation :

The cart on the roller coaster works on the principle of conservation of energy which says that the energy is only transformed from one form to another. It is not lost.

When the cart with wheels on the roller coaster goes up, the gravitational potential energy increases with height and is the highest at the highest point on the roller coaster. As the cart comes down, the potential energy is converted into kinetic energy. The kinetic energy is the highest at the bottom of the coaster.  

Friction is offered by air and the wheels. That is why the roller coaster will not go on forever unless it provided some external energy.  

Answer 2

Answer:

According to the author, the effect that the cart's wheels have on most roller coasters is that The wheels eliminate friction.

Explanation:

The excerpt is a description of the physics process of movement and the kind of energies that are necessary for the activity, and how they go from one to another in order to go up and down the heels, then the cart's wheels are the ones that allow this change of kind of energy along with the gravity force they have to fight.