physics

posted by lulu

a lever is 5 m long. The distance from the fulcrum to the weight to be lifted is 1 m. If a 3000 N rock is to be lifted, how much force must be excerted on the lever?

  1. bobpursley

    F1*d1=F2*d2

    F1=3000 d1 is 1m
    F2=? d2 is 4m

    solve for F2

  2. Margarita

    750N

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