The discussion revolves around a physics problem involving forces, tension, and motion, specifically focusing on the relationship between mass, acceleration, and velocity in a circular motion context.
Participants are actively engaging in clarifying the original poster's approach, with some suggesting a need to reconsider the assumptions about tension and to apply Newton's second law to different planes. There is a focus on exploring the correct setup of equations rather than reaching a definitive solution.
There appears to be confusion regarding the forces involved, particularly the assumption that tension equals mg, which is being questioned. The problem is described as deceptively easy, indicating potential complexities in the setup.
You're on the right lines. However, you incorrectly assume that the tension in the string is mg.Garen said:Homework Statement
Homework Equations
The Attempt at a Solution
The way I understood is it is by taking ma and setting it equal to mv^2/r and solving for v. With this I got answer choice number 9, sqrt(glsinTHETA). But it's wrong. Can anyone direct me in the right direction to solving this deceptively easy problem? Thanks in advance.
Hootenanny said:
No. Start by writing down two equations: one for the requirement of the sum of the forces in the vertical plane, and one for the sum of the forces in the horizontal plane. In otherwords, apply Newton's second law separately to the vertical and radial planes.Garen said: