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Example 19.4 Solution Free Body Diagrams All the forces are constant since the weight of the block causes the motion. The downward motion of the block, v B , causes the disk to be clockwise. of Copyright © 2010 Pearson Education South Asia Pte Ltd Example 19.4 Solution Principle of Impulse and Momentum We can eliminate A x and A y from the analysis by applying the angular impulse and momentum about point A. Disk Copyright © 2010 Pearson Education South Asia Pte Ltd
Example 19.4 Solution Cylinder Kinematics Since = v B /r then 1 = 2/0.2 = 10 rad/s and 2 = (v B ) 2 /0.2 = 5(v B ) 2 Substituting and solving the equations, Copyright © 2010 Pearson Education South Asia Pte Ltd 19.3 Conservation of Momentum Conservation of Linear Momentum When the sum of all the linear impulses acting on the system of connected rigid is zero, the linear momentum of the system is conserved. This equation is the conservation of linear momentum. 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: Example 19.2 Solution Principle of
Page 19 and 20: 19.3 Conservation of Momentum Proce
Page 21 and 22: Example 19.6 Solution Conservation
Page 23 and 24: Example 19.8 The 5-kg slender rod i

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