A jogger on a circular track that has the radius of 0.150km, Ask an Expert

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Q. A spring with k = 45 N/m hangs vertically next to a ruler. The end of the spring is next to the 15 cm mark on the ruler. If a 2.7 kg mass is now attached to the end of the spring, where would the end of the spring line up with the ruler marks?

Q. A jogger on a circular track that has the radius of 0.150km runs a distance of 1.10km. What angular distance does the jogger covers in radians?

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