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December 2, 2016

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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