The discussion revolves around the direction of tension in a metal rod supported at one end by another rod. Participants are exploring the nature of tension forces and their interactions with supports, questioning whether tension acts upward or downward in this context.
There is an ongoing exploration of the concepts of tension and reaction forces, with some participants suggesting that the tension in the rod is downward due to the nature of the forces involved. Multiple interpretations of the problem are being discussed, but no consensus has been reached.
Some participants express confusion regarding the diagrams and the definitions of tension and reaction forces, indicating a need for clearer representations or explanations of the setup.
Your diagrams on this and prior posts make no sense whatsoever. If you are wondering about the direction of tension forces , they always are pulling forces, not pushing forces. So if a rope or tension member pulls upward on a pin support, the pin support must pull downward on that rope or member, per Newton 3rd law.werson tan said:
Yes, I am thinking about the direction of tension of rope /metal rod. So in both cases that I asked earlier, the direction of tension of metal rod / rope should be in doenward direction, as opposed to the pin support that push against the metal rod / rope (inPhanthomJay said:
Yes, I am thinking about the direction of tension of rope or metal rod. So, the direction of tension of rope/metal rod will always be in the downward direction as in the both cases I have asked earlier? This is becoz of the pin support pull against the rope/ metal rod?(in upward direction) So, the reaction of this (tension of rope/ metal rod) will acts in downward direction?PhanthomJay said:
werson tan said:
werson tan said:
Suppose you fasten a rope to a support on the floor. Then you pull upward on the rope to place it in tension. At the top of the rope, your hand exerts an upward force on the rope, and the rope exerts a downward force on your hand. At the bottom of the rope, the rope exerts an upward force on the support, and the support exerts a downward force ( the so called reaction force) on the rope.werson tan said:
