Problema Solution
kelci weighs 60 pounds and sits 4 feet from the fulcrum of a seesaw. on the other end is her sister Kelly, who weighs 40 pounds. how many feet from the fulcrum should jelly sit in order to balance the seesaw?
Answer provided by our tutors
This is an example of an inverse variation. A seesaw is a type of lever.
w1 = 60 lbs the weight of Kelci
w2 = 40 lbs the weight of Kelly
d1 = 4 ft the distance between Kelci and the fulcrum
d2 = the distance between Kelly and the fulcrum
w1*d1 = w2*d2
60*4 = 40*d2
d2 = (60*4)/40
d2 = 6 ft
Kelly should site 6 feet from the fulcrum of the seesaw.