(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

The problem is basically a fair ride that has a pole as its base, another pole sticking out of it, the a cable with a chair at the end. I am given the length of the rod sticking out (3.00 m), the cable (5.00 m) and the angle between 30.0[tex]\circ[/tex]. I have to find the time it takes for 1 revolution around. The only other figure I can come up with is just -g.

2. Relevant equations

[tex]\Sigma[/tex]F_{y}=ma_{y}=F_{c}-mgcos[tex]\theta[/tex]=0

a_{rad}=[tex]\frac{v^2}{R}[/tex]=[tex]\frac{4\pi^2}{T^2}[/tex]

3. The attempt at a solution

All I have done so far is solved for the how far the seat is from that 30 degree angle in both x and y directions. I had been flying through these problems except this one is like a wall, I have been lost on it for the past about 4 hours. Though my frustration and anger has made it difficult to make any progress. If anyone can point me in the right direction, I see nothing but dead ends no matter which way I try to solve this. I am gonna try to rework my free body diagram, will edit when have more figured out.

Edit:Close thread, found out how to do this. Used some of forces equations to solve for m on both equations and then replaced my a with the second equation up there, my forces canceled, now just have some algebra to do.

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# Homework Help: Circular Motion Problem (Using Newtonian Physics)

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