# Work-rotational motion

1. Mar 30, 2005

### UrbanXrisis

work--rotational motion

This question is related to rotational motion....

The work done by an object in rotational motion is $$\int^{\theta_f}_{\theta_i}\tau d \theta$$

Does this mean $$W=\tau(\theta_f - \theta_i)$$?

2. Mar 30, 2005

### whozum

Yes.

Compare to $$W = \int_{x_i}^{x_f}{F}{dx} = F(x_f-x_i)$$

3. Mar 30, 2005

### UrbanXrisis

yeah, that's what I was thinking, thanks for the verification