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A square uniform raft, 15 m by 15 m , of mass 6900 kg , is...

A square uniform raft, 15 m by 15 m , of mass 6900 kg , is used as a ferryboat. If three cars, each of mass 1400 kg , occupy the NE, SE, and SW corners, determine the coordinates of the CM of the loaded ferryboat relative to the center of the raft. Take the origin to be at the CM of the raft. Express your answer using two significant figures. Enter your answers numerically separated by a comma

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