A balanced lever has two weights on it, the first with mass 15 kg 15kg and the second with mass 14 kg14kg. If the first weight is 7 m7m from the fulcrum, how far is the second weight from the fulcrum?

1 Answer
Feb 10, 2016

b=7,5 mb=7,5m

Explanation:

F:" the first weight"F: the first weight
S:" the second weight"S: the second weight
a: " distance between the first weight and fulcrum"a: distance between the first weight and fulcrum
b:" distance between the second weight and fulcrum"b: distance between the second weight and fulcrum
F*a=S*bFa=Sb
15*cancel(7)=cancel(14)*b
15=2*b
b=7,5 m