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

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A spring balance measures tension in a pulley system by displaying the force exerted by the weights attached to the strings. In scenarios where m1 and m2 are equal, such as both being 4.0 kg, the reading on the spring balance will be 40N. When the weights differ, for example, m1 at 6 kg and m2 at 4 kg, the reading changes to 48N. The tension in the system is influenced by the weight of the loads and the gravitational force acting on them. Understanding the principles of equilibrium and force balance is essential for solving these types of problems.
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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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