Question

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?

Answer 1

F1*d1=F2*d2

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

solve for F2

Answer 2

750N