A 20-Kg Stone Is Tied to a 0

question 6

Multiple Choice

A 2.0-kg stone is tied to a 0.50-m long string and swung around a circle at a constant angular velocity of 12 rad/s. The net torque on the stone about the center of the circle is:

• A) 0
• B) 6.0 N. m
• C) 12 N . m
• D) 72 N .m
• E) 140 N . m

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