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?

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Answer 1 · 2016-04-29T14:17:19

#x= 6.75" "#meters

Let #x" "#be the unknown distance

Summation of Moments about the fulcrum equals to zero.

Taking clockwise positive

#-9*3+4*x=0#

#x=27/4#

#x=6.75" "#meters

God bless....I hope the explanation is useful.