A parent and child are at opposite ends of a playground see-saw. The parent weighs 750 N and the child weighs 250 N. The child sits 2.4 m from the pivot. Calculate the distance the parent must sit from the pivot for the see-saw to be balanced.
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Explanation:
..parent weighs = 750 N
..CHILD WEIGHS =250N
CHILD SITS =2.4 m from the pivot
child's moment=force * distance
= 150N*2.4m =600 Nm
parent moment = child moment
rearrange - d=M/F
d=600Nm/750N
d=0.8 m
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