Xena, Yarra, and their daughter, Zahra, are playing on ice by pulling from the same massless rope. Xena (mX) and Yarra (mY=mX/2) are at the ends of a 30-meter long rope, and Zahra (mZ=mX/3) is in the middle, all at rest. Suppose the friction between them and the ice is small enough to ignore, and they all hold on to the rope tightly. Xena gives the rope a tug! Where do they meet?

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When Xena tugs the ropea wave of tension will travel along the rope at a constant speed determined b... View the full answer