kaylabryan46 kaylabryan46

24-12-2020
Physics

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a crowbar 2 metres long is used to lift a rock weighing 800 newtons .If the fulcrum is 0.25 metre,from where the bar touches the rock, how much effort must be applied to move the rock

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pepe134 pepe134

24-12-2020

Answer:

??

Explanation:

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