Posted by **Anonymous** on Wednesday, October 10, 2012 at 8:20pm.

A conical pendulum is formed by attaching a ball of mass m to a string of length L, then allowing the ball to move in a horizontal circle of radius r.

1. Find an expression for the tension T in the string.

(Express your answer in terms of the variables L, m, r and appropriate constants.)

2. Find an expression for the ball's angular speed (omega).

(Express your answer in terms of the variables L, r and appropriate constants.)

3. What is the tension for a 500g ball swinging in a 20 cm radius circle at the end of a 1.0 m-long string?

4. What is angular speed (in rpm) or a 500g ball swinging in a 20-cm-radius circle at the end of a 1.0-m-long string?

- Physics -
**jess**, Thursday, April 4, 2013 at 11:15pm
1. mg/(cos(sin^-1(r/L)))

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