thurlmami12 thurlmami12

18-12-2021
Physics

contestada

You are on the roof of a building 30 m above the ground. Using hand crank 3 points
you are to lift a 300 kg dresser on to the roof. How much work must to
generated to lift the dresser? *

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Аноним Аноним

18-12-2021

Answer:

The work will increase the potential energy.

W = PE = mgh = 300(9.8)(30) = 88200 J

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