Net Torque & Sign of Torque Video Lessons

Concept

# Problem: Torque in rotational motion is analogous to Force in linear motion. Newton’s second law holds for rotational motion as well. A net torque applied to an object causesA. linear acceleration of the object.B. The object to rotate at a constant rate.C. The angular velocity of the object to change.D. The moment of inertia of the object to change.

###### FREE Expert Solution

Newton's second law:

$\overline{){\mathbf{\Sigma }}{\mathbf{F}}{\mathbf{=}}{\mathbf{m}}{\mathbf{a}}}$

Net torque:

$\overline{){\mathbit{\Sigma }}{\mathbit{\tau }}{\mathbf{=}}{\mathbit{I}}{\mathbit{\alpha }}}$

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###### Problem Details

Torque in rotational motion is analogous to Force in linear motion. Newton’s second law holds for rotational motion as well. A net torque applied to an object causes
A. linear acceleration of the object.
B. The object to rotate at a constant rate.
C. The angular velocity of the object to change.
D. The moment of inertia of the object to change.