A Disk Has a Moment of Inertia of 3

question 80

Multiple Choice

A disk has a moment of inertia of 3.0 ´ 10^-4 kg*m² and rotates with an angular speed of 3.5 rad/sec.What net torque must be applied to bring it to rest within 3 s?

• A)4.5 ´ 10^-3 N*m
• B)7.5 ´ 10^-4 N*m
• C)3.5 ´ 10^-4 N*m
• D)5.0 ´ 10^-4 N*m

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