A roller-coaster car is at the top of a hill. The car and its passengers
have a combined mass of 1,090 kilograms. If the hill is 65 meters tall
how much potential energy does the car have? Acceleration due to
gravity is 9.8 meters per second squared.
661,068.8 J
70,850.0 J
67,456.0 J
694,330.0 J
To calculate the potential energy of the roller-coaster car, we can use the formula:
Potential Energy = mass x gravity x height
Given:
Mass = 1,090 kg
Gravity = 9.8 m/s^2
Height = 65 m
Potential Energy = 1,090 kg x 9.8 m/s^2 x 65 m
Potential Energy = 10,702 kg*m^2/s^2 = 10,702 J
Therefore, the potential energy of the roller-coaster car is 661,068.8 J.
The closest answer choice is 661,068.8 J.