A balanced lever has two weights on it, one with mass #12 kg# and one with mass #15 kg#. If the first weight is # 4 m# from the fulcrum, how far is the second weight from the fulcrum?

1 Answer
Apr 10, 2018

Answer:

The distance is #=3.2m#

Explanation:

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The mass #M_1=12kg#

The mass #M_2=15kg#

The distance #a=4m#

Taking moments about the fulcrum

#M_1xxa=M_2xxb#

#b=(M_1xxa)/(M_2)=(12*4)/(15)=3.2m#