# physics

A 0.50 kg ball that is tied to the end of a 1.4 m light cord is revolved in a horizontal plane with the cord making a 30° angle with the vertical. determine the balls speed.

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1. (b) If 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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posted by kaitlyn
2. go gulag

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