The rectangular plate, with a mass of 3 kg and auniform small thickness, is welded at
Chapter 7, Problem 7/64(choose chapter or problem)
The rectangular plate, with a mass of 3 kg and a uniform small thickness, is welded at the 45° angle to the vertical shaft, which rotates with the angular velocity of \(20 \pi \mathrm{rad} / \mathrm{s}\). Determine the angular momentum H of the plate about O and find the kinetic energy of the plate.
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