lillianS0T lillianS0T

17-01-2023
Physics

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A lever with an effort arm of 10 meters and a load arm of 2 meters is used to lift an object weighing 220 Newtons to a height of 4 meters. If 400Joules of work is done, how much force must have been applied?

4000 N
1600 N
800 N
100 N

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