A balanced lever has two weights on it, the first with mass 3kg and the second with mass 7kg. If the first weight is 8m from the fulcrum, how far is the second weight from the fulcrum?

1 Answer
Apr 19, 2017

The distance is =3.43m

Explanation:

enter image source here

Mass, M2=3kg

Mass, M1=7kg

Distance, b=8m

Taking moments about the fulcrum

M1a=M2b

a=M2M1b

=3g7g8=247m