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19.1 Linear and Angular Momentum Angular Momentum inertia computed about the z axis, I P = r 2 dm Equation can be reduced to a simpler form if point P coincides with the mass center G for the body where Copyright © 2010 Pearson Education South Asia Pte Ltd 19.1 Linear and Angular Momentum Angular Momentum Thus It states that the angular momentum of the body computed about G is equal to the product of moment of inertia of the body about an axis velocity. Can also written as Copyright © 2010 Pearson Education South Asia Pte Ltd
19.1 Linear and Angular Momentum Translation When a rigid body of mass m is subjected to rectilinear or curvilinear translation, its mass center has a velocity of v G = v and = 0 The linear momentum and the angular momentum computed about G is Since d is the moment arm, H A = (d)(mv G ) Copyright © 2010 Pearson Education South Asia Pte Ltd 19.1 Linear and Angular Momentum Rotation About a Fixed Axis When a rigid body is rotating about a fixed axis passing through point O, the linear momentum and the angular momentum about G are Noting that L (or v G ) is always perpendicular to r G , Copyright © 2010 Pearson Education South Asia Pte Ltd
Page 1 and 2: Engineering Mechanics: Dynamics in
Page 3: 19.1 Linear and Angular Momentum An
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 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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