A 60.0-kg person walks from the floor to the ceiling of a 74.8-m-tall building. How much gravitational potential energy does it have on top of the building?
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Gravitational Potential Energy P.E. = m*g*h ; where m is the mass of the body, g is the acceleration due to gravity which is constant equals to 9.8 m/s^2 and h is the heigth ; P.E. = 60*9.8*74.8 = 43982.4 Joules = 43.9824 KJoules
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