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Q. A 12gram bullet travelling at 110 m/s is fired into a .455 kg wooden block anchored to a 100N/m spring. How far is the spring compressed to the nearest thousandth of the meter?

Q. A 2.50 kg piece of wood slides on the surface. The curved sides are perfectly smooth, but the rough horizontal bottom is 32m long and has a kinetic friction coefficient of 0.30 with the wood. The piece of wood starts from rest 4.00 m above the rough bottom. Where will this wood eventually come to rest? For the motion from the initial free until the piece of wood comes to rest, what is the total amount of work completed by friction?

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