Understanding Newton's Laws through an Experiment on Uniform Circular Motion

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tornzaer
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Homework Statement


I've done an experiment on uniform circular motion. Pretty much, there is a hollow tube and a strong goes through it. One one end is a stopper and on the other is a weight. I had to spin the stopper side, buy keeping hold of the hollow tube, keeping the string at a constant rotation.

I have to explain how this experiment illustrates all three of Newton's laws of motion.

Homework Equations


N/A

The Attempt at a Solution



First law: The stopper doesn't stay in motion when there is no force exerted on the spinning because of the weight on the other side.
Second law: The force is based on the mass of the stopper and the acceleration exerted by spinning.
Third law: Not too sure...Could someone please correct me if I'm wrong and provide their insight on all three laws?
Thank you, the help is very much appreciated.
 
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Bump!

This is due and I need some help, please.
 
Can someone please respond?
 
I know I'm double/triple posting, but I need some insight on this. Please, someone.