A 030-Kg Rock Is Swung in a Circular Path and in in a Vertical

question 74

Multiple Choice

A 0.30-kg rock is swung in a circular path and in a vertical plane on a 0.25-m-length string.At the top of the path,the angular speed is 12.0 rad/s.What is the tension in the string at that point?

• A)7.9 N
• B)16 N
• C)18 N
• D)83 N

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