In the picture to the right, a 2 kg ball is at the top of the stairs. What is the potential energy of the ball at the height of 5 m?
Correct!
Use the gravitational potential energy equation: PEg = mph
m = 2 kg
p = 9.8 m/s2
h = 5 m
PEg = (2 kg) (9.8 m/s2) (5 m) = 98 J
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