A balanced lever has two weights on it, the first with mass #9 kg # and the second with mass #7 kg#. If the first weight is # 12 m# from the fulcrum, how far is the second weight from the fulcrum?

1 Answer
May 8, 2018

Answer:

The distance is #=15.43m#

Explanation:

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The mass #M_1=9kg#

The mass #M_2=7kg#

The distance #a=12m#

Taking moments about the fulcrum

#M_1xxa=M_2xxb#

#b=(M_1xxa)/(M_2)=(9xx12)/(7)=15.43m#