The discussion revolves around a problem in electrostatics involving two small spheres with equal charges suspended by silk fibers. The spheres are in static equilibrium, with a specified distance between them and a known mass.
Some participants have identified the forces involved and are exploring the equilibrium conditions. Guidance has been offered regarding the symmetry of the problem and the relationship between the tension and repulsive forces, although there remains some uncertainty about the next steps in the analysis.
Participants are working within the constraints of a homework problem, which may limit the information available for solving the problem. The discussion includes questions about assumptions related to the forces and geometry involved.
Right. But the symmetry of the problem tells you that T = T1 = T2; you only need to deal with one of the two masses. And yes, the tension in the string exerts a force on the mass with components Tx and Ty. For equilibrium, Ty = mg.Neerolyte said:Since there is strings involved, there must be tension. And since there are 2 strings connected to 1 point holding the 2 spheres. There must be T1 and T2. T1 and T2 must have components. We knew the mass of the two spheres so we know what Fg is, which equals to T1y and T2y.
The only forces acting horizontally are Tx and the repulsive force (F), so F = Tx. The length of the string and the distance between the masses will allow you to calculate the x and y components of the tension force. (Hint: One will be Tcos(theta); the other will be Tsin(theta).)Here is thing i don't know. Is T1x the repulsive force? IF it is, why does the data contain the string's length...and IF it is NOT, then I'm not sure how to do it...