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How much work is required to raise a 0.75 kg flag from shoulder height (1.2m) To the top of the flag pole (4 m)?

How much work is required to raise a 0.75 kg flag from shoulder height (1.2m) To the top of the flag pole (4 m)?
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22 votes
How much work is required to raise a 0.75 kg flag from shoulder height (1.2m) To the top of the flag pole (4 m)?

User Akashzincle
by
7.6k points

1 Answer

8 votes

Answer:

20.58J

Step-by-step explanation:


W=\Delta E


\Delta E= \Delta U_(g)


\Delta U_(g)=mgh


mgh=(.75kg)(9.8m/s^2)(2.8m)=20.58J

User McRobert
by
8.0k points
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