A Professor Likes to Demonstrate Centripetal Force by Swinging a Bucket

question 2

Multiple Choice

A professor likes to demonstrate centripetal force by swinging a bucket of water in the vertical direction.What is the minimum speed he must swing the bucket at the top of the circle if he is not to get drenched? (Assume that his arm is 1 m long.)

• A)1.1 m/s
• B)2.1 m/s
• C)3.1 m/s
• D)4.1 m/s
• E)5.1 m/s

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