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November 28, 2014

Homework Help: Physics

Posted by Camilla on Friday, June 15, 2012 at 11:49am.

A ball having a mass of 5 kg is attached to a string 1 m long and is whirled in a vertical circle at a constant speed of 13 m/s.

(a) Determine the tension in the string when the ball is at the top of the circle.
(b) Determine the tension in the string when the ball is at the bottom of the circle.

The answers are supposed to be
a) 796 N
b) 894 N

How do I get these answers? Thank you in advance.

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