A balanced lever has two weights on it, the first with mass #3 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 · 2016-01-31T11:09:52

2.25m

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for Blance, we know,

#M_2/M_1=A/B#

suppose, B= #xm#

so,

#(4kg)/(3kg)=3/x#

#or,x=(3xx3)/4#

#or,x=2.25#