King Fahd University of Petroleum & Minerals. Mechanical Engineering Dynamics ME 201 BY Dr. Meyassar N. Al-Haddad Lecture # 36. Chapter 18 Planar Kinetics of Rigid Bodies: Work and Energy. Kinetic Energy. General. Translation. Rotation. Rotation.
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King Fahd University of Petroleum & Minerals
Dynamics ME 201
Dr. Meyassar N. Al-Haddad
Lecture # 36
Chapter 18Planar Kinetics of Rigid Bodies:Work and Energy
General Plane Motion (Translation and Rotation)
Total K.E. ?
K.E. of the Body of Bike and man ( translational )
K.E of the wheel ( Translational + Rotational )
Total K.E. = 2 Twheel +T B+Man
Total K.E = ?
Cylinder ( Translation &Rotation)
Total K.E = ?
The work of a force
Force That Do No Work
Rolling resistance force Fr
Fr acts at point which has zero velocity
The point is not displaced
Pin Reaction Do No work
Act on zero velocity and create no displacement
The Work of a couple
-Do work only when the body undergoes a rotation
-Translation : positive work cancels the negative work
m =10 kg M = 50 NmP = 80N, unstretched 0.5 m total work ?