A disk has a moment of inertia of 3.0 X 10^{-4} kg•m^{2 }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 x 10^{-3} N•m

b. 7.5 x 10^{-4} N•m

c. 3.5 x 10^{-4} N•m

d. 5.0 x 10^{-4} N•m

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