GPE of the earth-ceiling fan system relative to the floor is 98 J .
Potential energy that a massive object has in relation to another massive object due to gravity is called Gravitational potential energy. It is this energy associated with the gravitational field, which is converted to kinetic energy when the objects fall towards each other. It represents the potential an object has to do work being located at a particular position in a gravitational field.
Given mass of fan= 4kg
height, h = 2.5m
GPE = m*g*h
g is the acceleration due to gravity which is 9.8
GPE= 4 * 2.5 * 9.8
GPE = 98J
Hence, GPE of the earth-ceiling fan system relative to the floor is 98 J .
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