Ted Tells His Incredulous Nephews That He Can Turn a Bucket

Multiple Choice

Ted tells his incredulous nephews that he can turn a bucket of water upside down without the water pouring out! To illustrate, he puts a small amount of water in a bucket and swings it around in a circle so that the bucket travels from his knees, up over his head, and swings back down to his knees (see figure) . If the water is 2.2 feet from the center of the circle of motion and is weightless at the top of the loop, what is the linear speed of the bucket? [Ignore the fact that the water in the bucket has depth; that is, pretend all the water is 2.2 feet from the loop's center.]

A) 8.4 ft/s
B) 3.8 ft/s
C) 4.2 ft/s
D) 16.8 ft/s