The discussion revolves around analyzing the forces acting on a modified Atwood machine, specifically focusing on the forces related to the masses and the spring involved in the system.
Some participants confirm the original poster's initial thoughts about the forces, while others provide corrections and clarifications regarding the number and nature of the forces acting on the masses. The discussion reflects a collaborative effort to refine understanding without reaching a definitive conclusion.
There is an indication that the presence of the spring complicates the analysis of forces, and participants are actively questioning the assumptions made about the forces involved.
Careful: The only force of gravity on that mass is mg. (But there's a spring force on it.) So there are three forces acting on that mass.Shukie said:- On the mass above the spring there are two more forces, -2mg and T.
Doc Al said:Careful: The only force of gravity on that mass is mg. (But there's a spring force on it.) So there are three forces acting on that mass.
Yes.Shukie said:Are the forces on the mass above the spring then T and -mg and - kx?