594_Dynamics 11ed Manual

594_Dynamics 11ed Manual - Engineering Mechanics - Dynamics...

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Unformatted text preview: Engineering Mechanics - Dynamics Chapter 18 0 ⌠ 1 2 0+⎮ −k θ dθ = IOω 2 ⌡4 π ω= k 4π IO ω = 14.1 rad s Problem 18-3 At the instant shown, the disk of weight W has counterclockwise angular velocity ω when its center has velocity v. Determine the kinetic energy of the disk at this instant. Given: W = 30 lb ω=5 rad s v = 20 ft s r = 2 ft ft g = 32.2 2 s Solution: T= 1 ⎛ 1 W 2⎞ 2 1 ⎛ W ⎞ 2 r ⎟ω + ⎜ ⎟v ⎜ 2⎝2 g ⎠ 2⎝ g ⎠ T = 210 ft⋅ lb *Problem 18-4 The uniform rectangular plate has weight W. If the plate is pinned at A and has an angular velocity ω, determine the kinetic energy of the plate. Given: W = 30 lb ω=3 rad s a = 2 ft b = 1 ft Solution: T= 1 2 21 m vG + IGω 2 2 592 ...
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This note was uploaded on 08/16/2011 for the course EGN 3321 taught by Professor Christianfeldt during the Spring '08 term at University of Central Florida.

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