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duxy
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Homework Statement
The south pole of the circular motion is labeled "O" and it's the center of the xOy axes. The point leaves "O" to the right increasing it's positional vector([tex]\bar{}r[/tex]) dimension and the [tex]\alpha[/tex] angle (the angle is between the positional vector and the Ox axis). The force that keeps the material point on the circular motion is always pointed towards "O". The north pole is labeled "A" and at that specific point the velocity is v[tex]_{}0[/tex]. The radius of the circle is R. Find the force F and the period T.
Homework Equations
r=r([tex]\alpha[/tex])
F=ma
v(subscript-alpha)=r(first derivative of alpha)
r^2*(first derivative of alpha)=c
The Attempt at a Solution
If the centripetal force applies i think F=-m(c^2/r^4)r([tex]\alpha[/tex])
If i know the force i can compute the T as T=-(2*pi*m*[tex]\vec{}r[/tex])/F
Can someone please explain if this is right and if not i am open to suggestions :) Thanks
Sorry for not using the subscripts, but the preview looked kinda weird.