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

"A mass m = 16.0 kg is attached to the lower end of a massless string of length L = 71.0 cm. The upper

end of the string is held fixed. Suppose that the mass moves in a circle at constant speed, and that the

string makes an angle theta = 25deg with the vertical, as shown in the figure."

(See attachment on page 2)

2. Relevant equations

T = 2pi*r/v

3. The attempt at a solution

I found tension = (16)(9.8)/(cos25deg) (not sure if this is the correct answer though but I think it is)

T = 2pi*r/v I found radius = 0.71m * (sin25deg)

but I need to find velocity I'm guessing so that I can get period T.

Any help would be greatly appreciated!

Thanks in advance!

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# String rotating to make a cone, find period and tension

Can you offer guidance or do you also need help?

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