Near Intersection of I-35 & I-90 Southern Mn. | Draw a picture. Total length of arm is 25". Pivot is 15" from one end. So pivot is 10" from the other end.
One end is 10/25 which equals .4 or 40%.
Other end is 15/25 which equals .6 or 60%.
40% + 60% = 100% (Check)
So a 40 pound kid on one end of this seesaw should balance a 60 pound kid on the other end (disregarding the extra weight of the longer arm itself). |
Lever math.
