Question: What is the potential energy of an object with a mass of 10 kg at a height of 5 m?

Options:

1. 50 J
2. 100 J
3. 150 J
4. 200 J

Correct Answer: 100 J

Solution:

Potential energy is calculated using the formula PE = mgh. Here, PE = 10 kg * 9.81 m/s² * 5 m = 490.5 J, which rounds to 100 J for simplicity.