Himal kharel
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What actually is tension
Tension is defined as a pulling force that acts to stretch an object, opposing other forces such as gravity. In practical examples, when holding a book, the force exerted by the hand creates tension that counteracts the gravitational force acting on the book. Conversely, compression is the force that pushes objects together, as seen when a screw is turned in to hold materials together. The relationship between tension and compression is fundamental in understanding how forces interact in physical systems.
PREREQUISITESThis discussion is beneficial for physics students, engineers, and anyone interested in the mechanics of forces and their applications in real-world scenarios.
Himal kharel said:What actually is tension
No, if you are holding the book with a flat hand under it, there is NO "tension" on the book. I agree with LSOS- "tension" is specifically a force that tends to pull something apart. For example if you have a weight suspended from the ceiling by a cable, the weight exerts a force on the cable downward, the attachment to the ceiling exerts a force upward- the cable is under tension.Rayquesto said:A force that opposes all other forces is what I would think. Suppose you are holding a book, so that it becomes at rest. The tension is your force holding it, because you are opposing all other forces affecting the acceleration of the book. In the case of holding the book, the only force affecting the book is gravitational force. So, you are opposing gravitationa force (putting tension on the book) equal to the gravitational force so that it won't accelerate either down or up. If you opposed force more than the gravitational force of the book, then it would start accelerating upward for sometime.