Answers

2016-02-15T11:54:11+08:00

if the two boys have equal weights then the seesaw would be balance once they get on it, but if they would like to have it moving one those boys should move closer to the center the other should be near the end so that on  the side near the would become heavier thus the seesaw will  move up and down without much force exerted by both boys
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