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# Rotational Kinematics and Dynamics with Calculus

APPHMC-1ZZ9E8

An object with a moment of inertia of $15 kg m^2$ angular displacement is determined by $\theta=2t^3-5t^2+6$ where $\theta$ is measured in radians.

Which of the following answers best describes the net torque acting on the object at 5.0s?

A

$50 mN$

B

$131 mN$

C

$450 mN$

D

$750 mN$

E

$980 mN$