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Physics

Answered

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? (1 point)
O 800 N
O 100 N
O 4000 N
O 1600 N

Answer :

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