The discussion revolves around a problem in Newton's mechanics, specifically focusing on a system in equilibrium involving tension in ropes and the readings of a scale under various conditions.
The discussion is active, with participants providing insights into the relationship between tension and scale readings. Some guidance has been offered regarding the balance of forces and the implications of different setups, though multiple interpretations of the problem are being explored.
Participants are navigating assumptions about the system's equilibrium and the effects of placing masses at different points relative to the scale. There is a mention of potential confusion regarding the scale's reading when masses are arranged in various configurations.
Good. So what must be the tension in the rope?m0urazz said:
Yes. The tension is the same whether there are two counter balanced masses or one mass and one end of the scale tied off to a large static object.scarpma said:
In every rope, there's also a tension which is equal to 49NDoc Al said:
Exactly. So what must the scale read?m0urazz said:
I know what you mean, but there are two masses, if we simply put them at one end it'd read 98 N, and now by putting one at every end it will read 48 N, I just can't understand why :/Doc Al said:
Careful here. If you put both masses at the the same end of the scale, the scale would go flying.m0urazz said:
The tree will exert 49 N just to balance the force exertedDoc Al said:
Right. And the tension in the ropes will be 49 N. Which is what the scale will read.m0urazz said: