How Does a Spring Balance Measure Tension in a Pulley System?

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SUMMARY

The discussion focuses on the mechanics of a spring balance measuring tension in a pulley system with two weights, m1 and m2. When both weights are equal at 4.0 kg, the spring balance reads 40N. In the case where m1 is 6 kg and m2 is 4 kg, the reading increases to 48N. The tension in the system is directly related to the weights attached and the gravitational force acting on them.

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SiYuan
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Homework Statement


A light spring balance is attached to two strings that passes over smooth pulleys. Loads of m1 and m2 are attached to the ends of the strings. If m1=m2=4.0kg, or m1=6kg m2=4kg, what is the reading of the spring balance.

Ans: 40N and 48N

I just need to know how do i do it. And a general theory behind it all. Sorry for this very simple question here. :frown:

It's basically like this

o------Spring-----o
|```````````````|
m1``````````````m2


Cheers for the upcoming help.
 
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Alright got it anyway.

Must've been too easy for youse lot here.

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