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?

1 Answer
Feb 2, 2016

Answer:

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_1gd_1 = m_2gd_2#
F - Force (mass x gravitational
acceleration)
#d_1 = m_2d_2/m_1#
(1kg)(3m)/9 kg