Angular Velocity: Difference between revisions

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==The Main Idea==
==The Main Idea==


In order to find out the velocity of things which revolve around a body we have to take account not just speed but also the radius of which it is revolving around. In order to figure out the direction of angular velocity we can use the Right hand rule.  
In order to find out the velocity of things which revolve around a body we have to take account not just speed but also the radius of which it is revolving around. In order to figure out the direction of angular velocity we can use the Right hand rule. It is important to note the definition of linear velocity, which is the rate of change of position measured in meters with respect to time. The only difference between the two is the fact that the object is rotating around something.  




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dθ= rate of change of the radians or degrees
dθ= rate of change of the radians or degrees
dt= rate of change of time throughout the interval
dt= rate of change of time throughout the interval
L = Iω
L= Angular Momentum
I = Moment of inertia




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A car travels with a velocity of 10 m/s and revolves around a track with a radius of 12 meters. What is the angular velocity?
A car travels with a velocity of 10 m/s and revolves around a track with a radius of 12 meters. What is the angular velocity?


Relevant equations: ω = R/v   
Relevant equations: ω = 2(pi)R/v   
R= 12 meters
R= 12 meters
v= 10 m/s
v= 10 m/s
Plug and Chug the variables into the equation
Plug and Chug the variables into the equation
ω = (12 meters) / (10 m/s) = 1.2 rads/sec
ω = 2(pi)(12 meters) / (10 m/s) = 7.540 rads/sec
 
 
===Middling===
===Middling===



Revision as of 00:15, 2 December 2015

CLAIMED By Josh Mathew

Angular Velocity describes the rate of change around a center of mass. It is measured in radians/second.

The Main Idea

In order to find out the velocity of things which revolve around a body we have to take account not just speed but also the radius of which it is revolving around. In order to figure out the direction of angular velocity we can use the Right hand rule. It is important to note the definition of linear velocity, which is the rate of change of position measured in meters with respect to time. The only difference between the two is the fact that the object is rotating around something.


A Mathematical Model

ω = R/v ω= The greek symbol of omega symbolizes angular velocity R= The radius of the body of which is rotates, measured in radians V= Linear Velocity

ω = dθ/dt

dθ= rate of change of the radians or degrees dt= rate of change of time throughout the interval

L = Iω L= Angular Momentum I = Moment of inertia


A Computational Model

How do we visualize or predict using this topic. Consider embedding some vpython code here Teach hands-on with GlowScript

Examples

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Simple

A car travels with a velocity of 10 m/s and revolves around a track with a radius of 12 meters. What is the angular velocity?

Relevant equations: ω = 2(pi)R/v R= 12 meters v= 10 m/s Plug and Chug the variables into the equation ω = 2(pi)(12 meters) / (10 m/s) = 7.540 rads/sec


Middling

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Connectedness

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History

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See also

You should also check out the Right Hand Rule. Angular Momentum Linear Velocity

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