A tether ball of mass m is suspended by a rope of length L from the top of a pole. A youngster gives it a whack so that it moves with some speed v in a circle of radius r = L sin(θ) < L around the pole.(adsbygoogle = window.adsbygoogle || []).push({});

a) Find an expression for the tension T in the rope as a function of m, g, and θ.

b) Find an expression for the speed v of the ball as a function of θ.

F = mv^2 / r

I do not know what to do. All I have is Tcosx = mv^2/r - mg

any help please??

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# Homework Help: Ball on a string help?

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