what does a spring balance measure ? how would you demostratrate the principal on which it works ?
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Explanation:
A spring scale or spring balance or newton meter is a type of mechanical force gauge or weighing scale. It consists of a spring fixed at one end with a hook to attach an object at the other.
The main principle of a spring balance is determining gravitational pull in regards to Hooke's Law. Physical objects that need to be weighed are tied to a spring's ends. The spring is then extended to determine the weight with a calibrated scale.
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