Answer :

The gravitational potential energy of a 65.7 kg person standing on the roof of a 135 meter building is 86,752.17 Joules, calculated using the formula PEg = mgh.

The gravitational potential energy (PEg) of a person or object is calculated using the formula PEg = mgh, where m is the mass in kilograms, g is the acceleration due to gravity (9.8 m/s² on Earth), and h is the height above a reference point in meters.

In the case of a 65.7 kg person standing on the roof of a 135 meter building, the gravitational potential energy can be calculated as follows:

PEg = mgh = (65.7 kg) (9.8 m/s²) (135 m) = 86,752.17 Joules

Hence, the person has a gravitational potential energy of 86,752.17 J when standing on the roof of the building.

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Rewritten by : Barada