A balanced lever has two weights on it, the first with mass 12kg and the second with mass 36kg. If the first weight is 4m from the fulcrum, how far is the second weight from the fulcrum?

1 Answer
Apr 16, 2017

The distance is =1.33m

Explanation:

enter image source here

Mass, M2=12kg

Mass, M1=36kg

Distance, b=4m

Taking moments about the fulcrum

M1a=M2b

a=M2M1b

=12g36g4=43m