(Answered) You are with 21 other people on a boat at rest in

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You are with 21 other people on a boat at rest in frictionless water. The group's total mass is 1638 kg , and the boat's mass is 1.2×104 kg. The entire party walks the 6.9 m distance from bow to stern. How far does the boat move? (d=?cm) Express your answer using two significant figures.

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