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

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