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Question: A 0.50-kg ball that is


A 0.50-kg ball that is tied to the end of a 1.5-m light cord is revolved in a horizontal plane, with the cord making a 30° angle with the vertical. (See Fig. P7.75.)
(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?
(c) If the cord can withstand a maximum tension of 9.8 N, what is the highest speed at which the ball can move?

Figure P7.75:



A 0.50-kg ball that is tied to the -1


2.99

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