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We figured out the tension in the string using dynamic and static method...

in dynamic we just used the measured radius and found out the angle to calculate the force of tension.

in static, we measured the horizontal force by attaching the spring scale's hook to the hook where the string was hooked on. We pulled the apparatus horizontally to the radius. With this and the angle we calculated the force of tension.

My question is...

What is the difference in the result of the two methods?

Why is one called dynamic and the other, static?

Why do I get a slightly different tensions for the two methods?? What's the cause of the discrepancy?

Any help would be appreciated. :)