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Assuming dissipative forces can be ignored, how fast will an empty barrel with a radius of 42 cm be moving after traveling 22 m down in incline plane with a 23^oslope? Assume the barrel is initially at rest and that its moment of inertia can be approximated as a hollow cylinder rotating about its axis: Icylinder = MR2. Your answer should be given to a tenth of a m/s.

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