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ptejav
Joined: 08 Sep 2010 Posts: 3 Location: INDIA

Posted: Thu Sep 09, 2010 4:36 pm Post subject: Circular Motion 


If a particle moves along the circle with constant speed, then th eratio of its angular speed about any point on the circle tothat of the centre is? please explain 

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ptejav
Joined: 08 Sep 2010 Posts: 3 Location: INDIA

Posted: Thu Sep 09, 2010 4:38 pm Post subject: Re: Circular Motion 


ptejav wrote:  If a particle moves along the circle with constant speed, then th ratio of its angular speed about any point on the circle to that of the centre is? please explain 


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hepcj Site Admin
Joined: 23 Jun 2007 Posts: 125

Posted: Thu Sep 09, 2010 7:33 pm Post subject: 


The angular speed is how fast the particle rotates. The velocity depends on how for the particle is from the centre. In fact the the velocity is given by
v = r w where r is the distance of the particle from the centre and w (omega) is the angular velocity.
The question is not worded very well. It says angular speed, so I presume this is the angular velocity which is constant if the particle is moving at constant speed. Therefore the ratio would be 1.
If the questions means the velocity v of the particle then ratio is r = v/w, this would at least teach you something about the relationship between angular velocity and velocity. 

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