Friday
March 6, 2015

Homework Help: Physics

Posted by Kayla on Wednesday, October 12, 2011 at 12:35pm.

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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