A 180kg hoop rolls along a horizontal floor so that the, Ask an Expert

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Q1. A plane moves 589m northeast along a runway. If the northern component of this displacement is 89m, how large is the eastern component?

Q2. A 180kg hoop rolls along a horizontal floor so that the hoop's center of mass has a speed of 0.130m/s. How much work must be completed on the hoop to stop it?

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