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Svet_ta [14]
3 years ago
5

Estimate the change in gravitational potential energy when a person with mass 80 kg rise from bed to a standing position. Assumi

ng that the center of mass of a person is elevated by approximately Δh=0.50m. Express your answer with the appropriate units.
Physics
1 answer:
Doss [256]3 years ago
7 0

Answer:

change in gravitational potential energy Δ PE = 392 J

Explanation:

given data

mass of the person m  = 80 kg

height of the centre of mass Δh = 0.50 m

to find out

change in gravitational potential energy

solution

we get here change in gravitational potential energy that is express here as

change in gravitational potential energy Δ PE = m × g × Δh     .........1

put here value we get

change in gravitational potential energy Δ PE = m × g × Δh

change in gravitational potential energy Δ PE = 80 × 9.8 × 0.50

change in gravitational potential energy Δ PE = 392 J

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