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Problem about Masses

 
 
Reply Wed 10 Sep, 2014 09:03 am
A square object has a circle cut out spins around the center of mass. The Axis of Rotation is perpendicular to the plane of the square. Object has mass M and the sides of the square is 2R. Density is constant.

Ms is the mass of square Mc is mass of circle. Express moment of inertia in terms of Ms, Mc, and R

How does objects mass (M) relate to masses Ms and Mc?

What is the ratio of Ms to Mc?

Express Ms and Mc in terms of M?
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Type: Question • Score: 3 • Views: 1,005 • Replies: 7
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engineer
 
  2  
Reply Wed 10 Sep, 2014 01:21 pm
@jasonmoon,
Start here.
jasonmoon
 
  1  
Reply Wed 10 Sep, 2014 10:49 pm
@engineer,
I realized that you had posted twice linking the Moment of Inertia values, but I don't really understand how you work the two problems? Can you work one out as an example and demonstrate how you did it?
0 Replies
 
One Eyed Mind
 
  0  
Reply Wed 10 Sep, 2014 10:50 pm
What is the ratio of MC Hammer? Does it really matter? It's not like you'll ever touch it.
jasonmoon
 
  1  
Reply Wed 10 Sep, 2014 10:55 pm
@One Eyed Mind,
MC Hammer? No.. Mc is the title given to the circle in the square... it is just to word the question easily. I think this has something to do with the MOI formulae.
One Eyed Mind
 
  -2  
Reply Wed 10 Sep, 2014 10:59 pm
@jasonmoon,
This homework is easy.

I can solve Riemann's Hypothesis - get on my level.
jasonmoon
 
  2  
Reply Wed 10 Sep, 2014 11:08 pm
@One Eyed Mind,
I don't care what you can solve. This is just a problem I need help with. If you are so advanced, then why don't you solve it? It's literally my first month of physics.
One Eyed Mind
 
  -2  
Reply Wed 10 Sep, 2014 11:11 pm
@jasonmoon,
I am too advanced to solve busy work created by those who teach you the illusion of knowledge.
0 Replies
 
 

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