Tuesday
September 30, 2014

Homework Help: Physics

Posted by Tina on Wednesday, October 12, 2011 at 5:40pm.

A tether ball of mass 0.25 kg is attached to a vertical pole by a cord 1.4 m long. Assume the cord attaches to the center of the ball. The cord makes an angle of 20 with the vertical.

(a) What is the tension in the cord?

(b) What is the speed of the ball?

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