Systems with Nonzero Torque: Difference between revisions
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==The Main Idea== | ==The Main Idea== | ||
With previous systems involving torque, we've been fortunate enough to have systems where the net torque is non-zero, hence <math> \vec{L}_{final} = \vec{L}_{initial}. </math> | |||
See | |||
However, we're not always fortunate enough to have such systems. | |||
===A Mathematical Model=== | ===A Mathematical Model=== | ||
So the angular momentum principle is the following: <math>{\frac{d\vec{L}}{dt}}= \vec{r} * \vec{F}_{net} = \vec{т}_{net} </math> | |||
===A Computational Model=== | ===A Computational Model=== |
Revision as of 21:51, 5 December 2015
Claimed by nvohra3.
In certain systems, external torques have an effect on a system's angular momentum. Since these external forces do not sum to zero, we end up with a system with nonzero torque.
The Main Idea
With previous systems involving torque, we've been fortunate enough to have systems where the net torque is non-zero, hence [math]\displaystyle{ \vec{L}_{final} = \vec{L}_{initial}. }[/math] See However, we're not always fortunate enough to have such systems.
A Mathematical Model
So the angular momentum principle is the following: [math]\displaystyle{ {\frac{d\vec{L}}{dt}}= \vec{r} * \vec{F}_{net} = \vec{т}_{net} }[/math]
A Computational Model
How do we visualize or predict using this topic. Consider embedding some vpython code here Teach hands-on with GlowScript
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See also
A general description of torque: http://www.physicsbook.gatech.edu/Torque
External links
A brief overview on the topic: [1]
References
Matters and Interactions: 4th Edition