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Example 19.6 Solution Impulse and Momentum Diagrams There is no slipping. We have the momentum of the wheel just before impact, the impulses given to the wheel during impact, and the momentum of the wheel just after impact. Copyright © 2010 Pearson Education South Asia Pte Ltd Example 19.6 Solution Conservation of Angular Momentum Kinematics Since no slipping occurs, = v G /r = v G /0.2 = 5v G Substituting this into the above equation, (1) Copyright © 2010 Pearson Education South Asia Pte Ltd
Example 19.6 Solution Conservation of Energy In order to roll over the obstruction, the wheel must pass position 3. From conservation of energy equation, Substituting 2 = 5(v G ) 2 into Eq. , Copyright © 2010 Pearson Education South Asia Pte Ltd 19.4 Eccentric Impact* Eccentric impact occurs when the line connecting the mass centers of the two bodies does not coincide with the line of impact. Occurs when one or both of the bodies are constrained to rotate about a fixed axis. A problem involving the impact of two bodies requires determining the two unknowns (v A ) 2 and (v B ) 2 , assuming (v A ) 1 and (v B ) 1 are known or to be determined. Copyright © 2010 Pearson Education South Asia Pte Ltd
Page 1 and 2: Engineering Mechanics: Dynamics in
Page 3 and 4: 19.1 Linear and Angular Momentum An
Page 5 and 6: 19.1 Linear and Angular Momentum Tr
Page 7 and 8: Example 19.1 At a given instant the
Page 9 and 10: 19.2 Principle of Impulse and Momen
Page 15 and 16: Example 19.2 Solution Principle of
Page 17 and 18: Example 19.4 Solution Cylinder Kine
Page 19: 19.3 Conservation of Momentum Proce
Page 23 and 24: Example 19.8 The 5-kg slender rod i

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