Answer:
They both experienced the same force as they weigh the same amount
Newtonian physics
Explanation:
When the winch is pulling it up it's first hill, it is losing it's energy to give it to the coaster. It starts gaining energy because its height. Then when it goes down the hill, gravity kicks in and the potential energy turns into kinetic energy.
B) Tension , is the correct answer
Salt water is not an example of suspension as salt dissolves in water and combines with it rather than float in the water.
The answer is C.) mass is the matter of an object