Question

A balanced lever has two weights on it, one with mass `8 kg` and one with mass `20 kg`. If the first weight is `4 m` from the fulcrum, how far is the second weight from the fulcrum?

Answer 1

`x=1,6 m`

Explanation:

`F_1*AE=F_2*BE`
`8*cancel(9,81)*cancel(4)=cancel(20)*cancel(9,81)*x`
`8=5*x`
`x=8/5`
`x=1,6 m`