Question: What is the potential energy of a 10 kg object 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 (PE) = m × g × h = 10 kg × 9.81 m/s² × 5 m = 490.5 J.