>>16902118
trick question, scales don't know how to read

>>16902118
Each scale doesnt know the other exits. If the other scale were just a wall, why should there be any difference? It's just newton's 3rd law.

he scale reads the tension in the spring. In this setup, the 100 N weight on the right provides the necessary opposing force (reaction force) to the 100 N weight on the left to keep the system in equilibrium, similar to how a fixed wall would. The net force on the scale is zero, but the tension within the spring is 100 N. Therefore, the scale measures this internal tension, which is 100 N.

100n, scale is 1 way

>>16902118
This type of scale is built to measure the sum of forces on each side divided by two. Each scale has 100 N on each side. So each scale measures (100+100) / 2 = 100 N.

0. The line is cut.

>>16902151
They cancel out.

>>16902127
Sorry, but this answer is incomplete. The answer is expected to be min the form of the true quantum mechanical description of reality not just 18th century mystical metaphysical mumbo jumbo.

>the scale
There are two scales. The question should be what does each scale show
>>16902127
What if one of the scales had a bad day? Would it be more tense

>>16902118
what is this, a quiz for retarded children? it's obviously 50 N on each of the two scales, 100 N combined.

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Well? Which situation takes more strength?

>>16902118
it will read 100N but that's illogical and fucked up

>>16902457
The same amount of strength. The tree on the bottom picture is pulling the rope to the left with the same force as the horse on the top one. The illusion comes from the fact that the horse is still doing hard work just to keep the rope still whereas the tree is just there doing nothing making it look like two horses should be harder. It's the same thing as holding 20kg on your arms is hard work, but it requires no energy to just have the same 20 kg sit on a table instead. This one really messed with my brain a little bit.

>>16902625
it is logical
it shows how much of the force is being "canceled out" by the rope

>>16902625
Why? If you think of the scales as just being part of the string, then they measure the tension the string is experiencing. Tension only depends on how strongly the string is being pulled at both ends.

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>>16902776
>Tension only depends on how strongly the string is being pulled at both ends.
Well yes, but actually no.

>>16903049
That scale reads zero because if it was pulling then the weights would fall over.

>>16903049
A 100N weight can't be part of the string, because then the weight of the string becomes non-negligible. Therefore, your image has two strings, both experience different tensions based on how hard their ends are being pulled apart.

>>16903056
>A 100N weight can't be part of the string, because then the weight of the string becomes non-negligible
Okay, replace the weight with a person pulling down with a force of 100N.

The point is you don't just look at the "ends" of a string when evaluating tension since that presupposes all parts of a string are under uniform tension.

>>16902118
300 nuetwons

>>16902118
100 N

>>16903051
The way it's drawn I doubt you can have a free-falling scale with next to no weight, so it might read 2-5 N?

>>16904746
If it weighs anything it unbalances the system which would mean the scale is falling though.

>>16902118
100 N on both.

>>16902118
It takes off.

There's two scales so it's 200N/2 = 100N. One individual scale doesnt have to pull with the full 200N alone if there is simultaneously another scale also pulling.

50N on each scale.
it would be 100N if there were only one scale, but the scales are springs, and so the springs are exerting an opposite force on the wire equal to the tension of the whole, meaning each spring scale would register 50N.

>>16902704
but the top pic has twice the horsepower.

>>16905377
A tree is much stronger than a horse.