The discussion revolves around a problem involving a vertical post supported by two cables, with participants analyzing the angles and forces involved in maintaining the post's stability. The subject area includes concepts from static equilibrium and trigonometry, particularly the use of SOH CAH TOA for resolving forces.
The discussion is ongoing, with participants providing insights into the mechanics of the problem and questioning assumptions made in the calculations. Some guidance has been offered regarding the conditions for equilibrium, but no consensus has been reached on the correct angle.
There is mention of a textbook answer that differs from the participants' calculations, leading to questions about the assumptions made in the setup. The original poster expresses uncertainty about the validity of their approach and the implications of the angles calculated.
Unfortunately, I do not fully comprehend this explanation. My question is why 33 degrees is not the correct angle for Theta.ehild said:The tension in the cables keep the post in vertical position. Its top point can not move sideways, the horizontal components of the tensions balance each other.
The vertical components do not need to be equal, as they are balanced by the force from the ground.
You calculated theta from the condition that the vertical components of the tensions are equal, which is wrong .Ryan Lau said:Unfortunately, I do not fully comprehend this explanation. My question is why 33 degrees is not the correct angle for Theta.
ehild said:You calculated theta from the condition that the vertical components of the tensions are equal, which is wrong .