Torque Question

1. Dec 10, 2005

hshphyss

Can anyone help me with this question? Thank-you

An object rotates with a constant angular velocity. Can there be a net torque acting on the object? Why?

2. Dec 10, 2005

andrewchang

no-

$$\Sigma T=I\alpha$$

if there is a net torque on the object, there will be an angular acceleration.