A balanced lever has two weights on it, the first with mass #42 kg # and the second with mass #14 kg#. If the first weight is # 7 m# from the fulcrum, how far is the second weight from the fulcrum?

1 Answer
Alan P.
Mar 31, 2016

#21 m#

Explanation:

Since the lever is balanced
#color(white)("XXX")42 cancel("kgm") xx 7 "m" = 14 cancel("kgm") xx "m"#

#color(white)("XXX")x" m" =42xx(cancel(7)^1)/(cancel(14)_2) " m" = 21 "m"#

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