A balanced lever has two weights on it, the first with mass #9 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?
Apr 29, 2016
Summation of Moments about the fulcrum equals to zero.
Taking clockwise positive
God bless....I hope the explanation is useful.