A 55 kg steel ball is raised to a height of 21 m. What is the P.E of the object?
The potential energy (PE) of the object is given by the formula PE = mgh, where m is the mass of the object, g is the acceleration due to gravity, and h is the height.
Given:
m = 55 kg
g = 9.8 m/s^2
h = 21 m
PE = (55 kg)(9.8 m/s^2)(21 m)
PE = 11205 J
The potential energy of the object is 11,205 J.