A balanced lever has two weights on it, the first with mass #15 kg # and the second with mass #80 kg#. If the first weight is # 16 m# from the fulcrum, how far is the second weight from the fulcrum?

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Answer 1 · 2017-03-26T09:41:56

The distance is #=3m#

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#M_2=15g N#

#b=16m#

#M_1=80gN#

Taking moments about the fulcrum

#M_1*a=M_2*B#

#8og*b=15g*16#

#b=(15g*16)/(80g)#

#=3m#