# Equation for torque of a cylinder, a hollow cylinder, and a sphere.

1. ### nlingraham

16
1. The problem statement, all variables and given/known data

What is the equation for the torque of a cylinder, a hollow cylinder, and a sphere rolling down an incline?

2. Relevant equations

This is what I don't know

3. The attempt at a solution

I have no idea where to start.

2. ### rock.freak667

6,231
Torque is the rate of change of angular momentum

if angular momentum = Iω, that is torque then?

3. ### zachzach

258
What is the equation for torque? Similarly to F = ma, the equation for torque is
$$T$$ $$=$$ $$I$$$$\alpha$$

4. ### nlingraham

16
Thanks, you guys are awesome