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MA 40.0-kg child swings in a swing supported by two
chains, each 3.00 m long. The tension in each chain at
the lowest point is 350 N. Find (a) the child's speed at
the lowest point and (b) the force exerted by the seat
on the child at the lowest point. (Ignore the mass of
the seat.)
m= 40kg
a) VaJ
r=3m
3SON
3.
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