589_Dynamics 11ed Manual

589_Dynamics 11ed Manual - m D and a bar of mass m b which...

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Engineering Mechanics - Dynamics Chapter 17 Given: m D 8kg = L 1m = m b 10 kg = r 0.3 m = μ s 0.6 = θ 30 deg = k 0.4 = g 9.81 m s 2 = Solution: φ asin r L = Assume no slip Guesses N C 1N = F C 1N = α 1 rad s 2 = a A 1 m s 2 = F max 1N = Given N C L cos () m D gL cos θφ () m b g L 2 cos () 1 2 m D r 2 m D a A r m b a A r 2 = F C m D m b + () g sin () + m D m b + () a A = F C r 1 2 m D r 2 = a A r = F max s N C = N C F C a A F max Find N C F C , a A , , F max , () = N C F C F max 109.042 16.053 65.425 N = 13.377 rad s 2 = Since F C 16.053 N = < F max 65.425 N = then our no-slip assumption is correct. Problem 17-112 The assembly consists of a disk of mass
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Unformatted text preview: m D and a bar of mass m b which is pin connected to the disk. If the system is released from rest, determine the angular acceleration of the disk. The coefficients of static and kinetic friction between the disk and the inclined plane are s and k respectively. Neglect friction at B . Solve if the bar is removed. 587...
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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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