How much work is done by tension?

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SUMMARY

The discussion focuses on the work done by the tension force in a string when swung in a horizontal circle at constant speed. The consensus is that no work is done by the tension force as it acts perpendicular to the direction of displacement. The correct answer to the posed question is option A: No work is done. This conclusion is supported by the understanding that work is defined as the product of force and displacement in the direction of the force, which does not apply in this scenario.

PREREQUISITES
  • Understanding of Newton's laws of motion
  • Basic knowledge of circular motion dynamics
  • Familiarity with the concept of work in physics
  • Ability to analyze forces acting on an object
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  • Study the principles of circular motion and centripetal force
  • Learn about the work-energy theorem in physics
  • Explore the relationship between force, displacement, and angle in work calculations
  • Investigate real-world applications of tension in circular motion scenarios
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Physics students, educators, and anyone interested in understanding the principles of work and energy in circular motion.

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Homework Statement



Let's say I tie a string to a clicker and swing it in a horizontal circle around my head at constant speed. How much work is done by the tension force due to the string when it goes all the way around one full circle?

A. No work is done.

B. The work equals the tension force times the radius.

C. The work equals the tension force times the diameter.

D. The work equals the tension force times the circumference.

Homework Equations





The Attempt at a Solution



I am leaning towards D.
 
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