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September 17, 2014

Homework Help: physics

Posted by tj on Monday, November 22, 2010 at 8:40am.

A 0.50 kg ball that is tied to the end of a 1.1 m light cord is revolved in a horizontal plane with the cord making a 30 angle, with the vertical

(a) Determine the ball's speed.

(b) If, instead, the ball is revolved so that its speed is 4.0 m/s, what angle does the cord make with the vertical?

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