What is the potential energy of a 5 kg object at a height of 10 meters above the ground? (Assume g = 9.8 m/s²)
Correct: B
Potential energy (PE) is calculated as PE = mgh, where m is mass, g is the acceleration due to gravity, and h is height. PE = 5 kg * 9.8 m/s² * 10 m = 490 J.