Question

A balanced lever has two weights on it, the first with mass `3 kg` and the second with mass `4 kg`. If the first weight is `3 m` from the fulcrum, how far is the second weight from the fulcrum?

Answer 1

2.25m

Explanation:

for Blance, we know,

`M_2/M_1=A/B`

suppose, B= `xm`

so,

`(4kg)/(3kg)=3/x`

`or,x=(3xx3)/4`

`or,x=2.25`