The discussion revolves around determining the component of weight that acts perpendicular to a bar, with a focus on the trigonometric relationships involved. The problem is situated within the context of physics, specifically dealing with forces and angles in mechanics.
There is an ongoing exploration of the correct approach to identifying the perpendicular component of weight. Some participants provide insights into the trigonometric relationships, while others question the assumptions made about the angle θ. The discussion reflects a mix of agreement and differing interpretations without reaching a definitive conclusion.
Participants note that the angle θ is measured from the vertical to the ground plane, which may differ from the angle considered in previous calculations. This distinction is crucial for understanding the components of weight being discussed.
It's fairly basic trigonometry. The angle, θ, is obtuse, so you might be better off considering the angle π - θ which is acute. You can then more directly see that you need to use sin(π - θ) by considering opposite/hypotenuse.theone said:
The theta you considered is not the same with the theta that is shown in the figure on the left.theone said: