Question

When a steady torque is acting on a body, the body

• A. Continues in its state of rest or uniform motion along a straight line
• B. Gets linear acceleration
• C. Gets angular acceleration
• D. Rotates at a constant speed

Answer 1

The correct option is D Rotates at a constant speed

Torque is constant let it be $Z$

$Torque=I\alpha \Rightarrow Z=I\alpha$

$I$ for a body is constant.

$\therefore \alpha =\frac{Z}{I}$ Is also contant.

So constant Torque implies costant angular acceleration.

Hence the body rotates at a constant speed.