663_Dynamics 11ed Manual

# 663_Dynamics 11ed Manual - ⎝ ⎞ ⎟ ⎠ 2.40 1.80 ⎛...

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Engineering Mechanics - Dynamics Chapter 19 Problem 19-50 The two disks each have weight W . If they are released from rest when θ = 1 , determine the maximum angle 2 after they collide and rebound from each other. The coefficient of restitution is e . When = 0° the disks hang so that they just touch one another. Given: g 32.2 ft s 2 = W 10 lb = 1 30 deg = e 0.75 = r 1f t = Solution: Guesses ω 1 1 rad s ω 2 1 rad s θ 2 10deg = Given W r θ 1 () 1 2 3 2 W g r 2 ω 1 2 Wr = ω 1 ω 2 = W r 1 2 3 2 W g r 2 ω 2 2 + W r θ 2 () ω ω θ 2 ω ω 2 θ 2 , () ω ω 2
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Unformatted text preview: ⎝ ⎞ ⎟ ⎠ 2.40 1.80 ⎛ ⎝ ⎞ ⎠ rad s = 2 22.4 deg = Problem 19-51 The rod AB of weight W is released from rest in the vertical position. If the coefficient of restitution between the floor and the cushion at B is e , determine how high the end of the rod rebounds after impact with the floor. Given: W 15 lb = l 2 ft = e 0.7 = 661...
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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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