Question

A balanced lever has two weights on it, the first with mass `8 kg` and the second with mass `64 kg`. If the first weight is `12 m` from the fulcrum, how far is the second weight from the fulcrum?

Answer 1

The distance is `=1.5m`

Explanation:

The first weight is `M_2=(8g)N`

The second weight is `M_1=(64g)N`

The first distance is `b=12m`

Taking moments about the fulcrum

`M_1*a=M_2*b`

`a=(M_2*b)/M_1=(8g*12)/(64g)=1.5m`