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An 114 kg man climbs up a 4 m high flight of stairs. The acceleration of gravity is [tex]9.81 \, \text{m/s}^2[/tex]. What is the increase in the gravitational potential energy of the man-Earth system?

Answer :

The increase in the gravitational potential energy of the man-earth system is 4473.36 J

Explanation:

Potential energy = Mass x Acceleration due to gravity x Height

Mass = 114 kg

Height = 4 m

Acceleration due to gravity = 9.81 m/s²

Substituting

Potential energy = Mass x Acceleration due to gravity x Height

Potential energy = 114 x 9.81 x 4

Potential energy = 4473.36 J

The increase in the gravitational potential energy of the man-earth system is 4473.36 J

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