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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 d…

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 d…
asked 234k views
5 votes
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? *

asked
User Michael Johnston
by
7.3k points

1 Answer

2 votes

Answer:

The work will increase the potential energy.

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

answered
User IGEL
by
7.8k points
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