Formulating equation to compare forces

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SUMMARY

The discussion focuses on formulating an equation to compare the forces acting on two balls connected by a massless string, one spinning on a table and the other hanging. The primary forces identified are the gravitational force on the hanging ball, expressed as F = m1 * g, and the centripetal force acting on the spinning ball. Participants emphasize the importance of considering tension in the string and the relationship between centripetal force and gravitational force to establish a comparative equation.

PREREQUISITES
  • Understanding of Newton's laws of motion
  • Knowledge of centripetal force calculations
  • Familiarity with gravitational force equations
  • Basic concepts of tension in strings
NEXT STEPS
  • Research the relationship between centripetal force and gravitational force in circular motion
  • Learn how to derive equations involving tension in a string
  • Explore torque and its applications in rotational dynamics
  • Study the concept of centrifugal force and its implications in physics
USEFUL FOR

Students studying physics, particularly those focusing on mechanics, as well as educators looking for insights into teaching force comparisons in circular motion scenarios.

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Homework Statement


We have two balls connected by a string. Let's assume string has no mass. One ball is on the table, spinning in circle at a constant speed, connected by string to a hole with another ball, hanging.
TtEjK
Here is picture. https://imgur.com/a/TtEjK

Homework Equations


Finding equation is the problem here.

The Attempt at a Solution


Obviously Force of ball hanging is F=m1*g
But how do I compare that to force of second ball?
I thought about comparing it to centripetal force, or to use torque, however torque unit (Nm) cannot be compared to (N), or at least I don't know about it.
 
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Barium said:
how do I compare that to force of second ball?
Think about the tension in the string. Can that be more at one end than the other?
 

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