Question: 3 . A 1 . 0 - kg ball on the end of a string is whirled at a constant speed of 2 . 0

3. A 1.0-kg ball on the end of a string is whirled at a constant speed of 2.0 m/s in a horizontal circle of radius 1.5 m. What is the work done by the centripetal force during a time interval of one millisecond? Show your work, or give a short explanation. (hint
What is the angle between the velocity and displacement?)

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