A 15-kg child is sitting on a playground teeter-totter, 1.5 m from the pivot. What is the minimum distance, on the other side of the pivot, such that a 220-N force will make the child lift off the ground?
A) 2.4 m B) 0.10 m C) 1.5 m D) 9.8 m E) 1.0 m
E
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