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Kinetics of Particles: Wikis


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Study guide

Up to date as of January 14, 2010

From Wikiversity

Part of the Dynamics course offered by the Division of Applied Mechanics, School of Engineering and the Engineering and Technology Portal



The application of particle kinematics to systems of forces is wholly dependent upon Newton's Second Law. Solutions to kinetics problems may be obtained by using Newton's Law directly, Work/Energy methods or through Impulse/Momentum calculations.

Newton's Equation of Motion

\sum\vec F_{(x,y,z)} = m \vec a_{(x,y,z)}
\sum\vec F_{(r,\theta,z)} = m \vec a_{(r,\theta,z)}
\sum\vec F_{(R,\theta,\phi)} = m \vec a_{(R,\theta,\phi)}

Kinetic Energy Analysis (Energy of Motion)

E=\int\vec F * d \vec r = \int(\vec F_x * dx + \vec F_y * dy + \vec F_z * dz) = \int m \vec a * d \vec r = \frac{1}{2} m (v_2^2-v_1^2) 



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Study guide:

  1. Wikipedia article:Newtons Laws
  2. Wikipedia article:Mechanical Work


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