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Heres the problem I am workin on

http://img294.imageshack.us/img294/9166/rotatesm3.jpg [Broken]

Now in order to find the magnitude of accleration I am assuming I would need to find the two components of acceleration first, Centripetal and Tangential...

I found tangetial by the formula

[tex] a_{t} = r\alpha [/tex]

I converted the 2 revolutions to

[tex] 4\pi radians [/tex]

but I am not exactly sure how to get tangential...i need angualr velocity...

how to I get angular velocity from revolutions?

http://img294.imageshack.us/img294/9166/rotatesm3.jpg [Broken]

Now in order to find the magnitude of accleration I am assuming I would need to find the two components of acceleration first, Centripetal and Tangential...

I found tangetial by the formula

[tex] a_{t} = r\alpha [/tex]

I converted the 2 revolutions to

[tex] 4\pi radians [/tex]

but I am not exactly sure how to get tangential...i need angualr velocity...

how to I get angular velocity from revolutions?

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