Question

Determine the mechanical energy of this object a 1 kilogram ball sits on a 10-meter high cliff

Answer 1

Mechanical Energy = Potential Energy + Kinetic Energy. But since the ball sits still on a cliff there is no KE. therefore, ME = PE. where PE = mgh. = 1x10^3 kg (9.81 m/s^2) (10 m) = 98.1 kJ. I hope this would help you in any way possible