| 1 | With our knowledge of torque... calm down. | |
| 2 | Now I'm going to take the torque about point Q. | |
| 3 | I've given it a little torque. | |
| 4 | So the sum of all forces is zero, and there is no torque. | |
| 5 | If they're exactly lined up, there is no longer any torque. |