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King Fahd University of Petroleum

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King Fahd University of Petroleum & Minerals Mechanical Engineering Dynamics ME 201 BY Dr. Meyassar N. Al-Haddad Lecture # 37 Planar Kinetics of a Rigid Body: Impulse ... – PowerPoint PPT presentation

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Title: King Fahd University of Petroleum


1
King Fahd University of Petroleum Minerals
  • Mechanical Engineering
  • Dynamics ME 201
  • BY
  • Dr. Meyassar N. Al-Haddad
  • Lecture 37

2
Planar Kinetics of a Rigid Body Impulse and
Momentum
  • Objective
  • To develop formulations for the linear and
    angular momentum of a body
  • To apply the principles of linear and angular
    impulse and momentum to solve rigid-body planar
    kinetic problems that involve force, time, and
    velocity.

3
Newtons Second Law
Principle of linear impulse and momentum equation
4
Linear Momentum
  • Measure of impact effect
  • Compare
  • bullets with small mass and high velocity
  • Ship with huge mass and slow velocity
  • L is a vector -- points in same direction
    as v
  • Unit kg.m/s or slug.ft/s

5
Angular Momentum
6
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7
Angular Momentum
  • Measure of Rotational effect
  • H is a vector quantity in the direction of w
  • Unit kg.m2/s or slug.ft2/s

8
Translation
Rotation About a Fixed Axis
General Plane Motion
9
(No Transcript)
10
Example 19.1
11
Example 19.1
12
Thank You
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