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How do I calculate work with two (equal) angles?
Okay, so the general formula is W=Fd(cos(theta)).
However, the problem states, "Two people lift a heavy box a distance of 15 m. They use ropes, each of which make an angle of 15 degrees with the vertical. Each person exerts a force of 225 N. How much work do they do?"
How do I calculate this?
the each do half the work of the lift
225*cos15*15
and the total is twice that.
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