# A balanced lever has two weights on it, the first with mass 1 kg  and the second with mass 9 kg. If the first weight is  3 m from the fulcrum, how far is the second weight from the fulcrum?

Feb 2, 2016

0.33 m

#### Explanation:

The torque or moment of each of the weights about the fulcrum is equal because the lever is balanced.
Torque= Fd
F= mg
${m}_{1} g {d}_{1} = {m}_{2} g {d}_{2}$
F - Force (mass x gravitational
acceleration)
${d}_{1} = {m}_{2} {d}_{2} / {m}_{1}$
(1kg)(3m)/9 kg