A roller-coaster car is at the top of a hill. The car and its passengers have a combined mass of 1,088 kilograms. If the hill is 62 meters tall, how much potential energy does the car have?
The potential energy of an object can be calculated using the equation: Potential Energy = mass * gravity * height.
Given that the mass of the car and its passengers is 1,088 kilograms, the height of the hill is 62 meters, and the acceleration due to gravity is 9.8 m/s^2.
Potential Energy = 1,088 kg * 9.8 m/s^2 * 62 m
Potential Energy = 667,551.2 Joules
Therefore, the roller-coaster car has approximately 667,551.2 Joules of potential energy.