a rock is at the top of a 20 meter tall hill. the rock has a mass of 10 kg. how much potential energy does it have?
To calculate the potential energy of the rock, we will use the formula:
Potential energy = mass x gravity x height
Given:
Mass of the rock (m) = 10 kg
Gravity (g) = 9.8 m/s^2
Height (h) = 20 meters
Potential energy = 10 kg x 9.8 m/s^2 x 20 meters
Potential energy = 1960 Joules
Therefore, the rock at the top of the 20-meter tall hill has a potential energy of 1960 Joules.