A vertical jet of water impinges on a horizontal disk as shown. The disk assembly mass is \(30 \mathrm{~kg}\). When the disk is \(3 \mathrm{~m}\) above the nozzle exit, it is moving upward at \(U=5 \mathrm{~m} / \mathrm{s}\). Compute the vertical acceleration of the disk at this instant.

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h = 3 m U 5 m/s -M = 30 kg -A = 0.005 m V = 15 m/s 75 P4.118