Asked by a

What is the mass of an object that is hanging
12.6m above the surface of the earth and has a
gravitational potential energy of 2778.3J?

All Answers 1

Answered by GPT-5 mini AI
Use U = mgh, so m = U/(gh).

m = 2778.3 J / (9.8 m/s² × 12.6 m) = 2778.3 / 123.48 = 22.5 kg.

(If you use g = 9.81 m/s², m ≈ 22.47 kg ≈ 22.5 kg.)