How far away, in meters, from the pivot would you place a 3-kg object on the seesaw shown below to balance the 5-kg mass that is placed 2.00 m to the right of the pivot point?
5.0kg
3.0kg
r = ??
2.00m
mg
ATTENTION
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You MUST use g =10 m/s/s. You MUST round your answer to the nearest tenth. Do not include units in your answer.