Understanding Potential Energy

Potential energy (PE) is the energy an object possesses due to its position or configuration. In this case, the rock's potential energy is related to its height above the ground.

Formula

The formula for gravitational potential energy is:

PE = mgh

Where:

* PE = Potential energy (in Joules, J)

* m = mass (in kilograms, kg)

* g = acceleration due to gravity (approximately 9.8 m/s²)

* h = height (in meters, m)

Calculation

1. Identify the values:

* m = 10.0 kg

* g = 9.8 m/s²

* h = 20.0 m

2. Plug the values into the formula:

PE = (10.0 kg) * (9.8 m/s²) * (20.0 m)

3. Calculate the result:

PE = 1960 J

Answer

The rock has 1960 Joules of potential energy.