In the Figure,a Ball Hangs by a Very Light String

question 127

Multiple Choice

In the figure,a ball hangs by a very light string.What is the minimum speed of the ball at the bottom of its swing (point B) in order for it to reach point A, which is 1.0 m above the bottom of the swing?

• A)2.2 m/s
• B)3.1 m/s
• C)4.4 m/s
• D)4.9 m/s

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