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A 0.50-kg ball that is tied to the end of a 2.0-m light cord is revolved in a horizontal plane, with the cord making a e = 30° angle with the vertical.
(a) Determine the ball's speed.
m/s
(b) If, instead, the ball is revolved so that its speed is 3.8 m/s, what angle does the cord make with the vertical?
(c) If the cord can withstand a maximum tension of 9.3 N, what is the highest speed at which the ball can move?
m/s

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