The discussion revolves around the effects of tension on angular velocity in a pulley system, specifically focusing on scenarios involving preloading with tension and the implications of different configurations of pulleys or spools. Participants explore the mechanics involved in these systems, including the forces and torques at play.
Participants express differing views on the nature of the systems being discussed, with some agreeing on the need for clarification regarding the configuration of the pulleys/spools, while others maintain that the scenarios are fundamentally different. The discussion remains unresolved regarding the equivalence of the scenarios and the implications for angular velocity.
Participants note that the systems may not be in equilibrium and that additional forces may need to be considered, but these aspects remain unresolved. The definitions of the components involved and their configurations are also points of contention.
Hi Russ, you are correct. These are better described as spools fixed in space, but free to rotate around the point at the center of the circle. Let's say that they are bearings, sitting on shaft. In the left picture, the tension on T1 will simply be T1-T2. What will the tension on T1 be in the picture on the right.russ_watters said:
In that case, there's an additional force missing from the pictures, one that acts at the center and opposes the net force of the applied T1 and T2.PaulB said:
I think you tripped over your wording there. I think you mean to ask about the force on the center bearing? T1 and T2 are applied forces, right? The force applied by the bearing is T1-T2, yes. For the second one, it's the same as long as T2 is somehow applied to the spool and not the fixt point directly. Otherwise T2 isn't really doing anything.PaulB said: