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You whirl a ball tied to the end of the rope in a horizontal circle at constant

ID: 1281331 • Letter: Y

Question

You whirl a ball tied to the end of the rope in a horizontal circle at constant speed, as shown in the diagram below. Use the direction rosette to answer the following questions.

(a) What is the direction of the centripetal force acting on the ball when it is at location A?


(b) If the string breaks when the ball is at location A, in what direction will the ball move?

You whirl a ball tied to the end of the rope in a horizontal circle at constant speed, as shown in the diagram below. Use the direction rosette to answer the following questions. (a) What is the direction of the centripetal force acting on the ball when it is at location A? (b) If the string breaks when the ball is at location A, in what direction will the ball move?

Explanation / Answer

For a) the centripetal force is pointing from the ball into the center, thus 8

For b) the string breaks at A. The centripital force is perpendicular to the direction of the centripital force and move away from the center, thus 2.

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