Centripetal Motion Homework: Mass of String/Spring Effect

AI Thread Summary
Considering the mass of the string or spring in centripetal motion affects the dynamics of the system. If the mass is significant, it can lower the height of the circular path, similar to a conical pendulum, thereby altering the radius of motion. A heavier string would require more energy to maintain the same circular path, resulting in a lower height for the object being twirled. This highlights the importance of accounting for the mass of the string or spring in calculations involving centripetal motion. Understanding these effects is crucial for accurate problem-solving in physics.
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Homework Statement


When solving problems involving centripetal motion, say rotating a string/spring with an object attached to it, without taking into account of the mass of the string/spring. What effect would it have if we DID take it into account?


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The Attempt at a Solution


If we were to twirl the mass in a horizontal circle, I would think that the weight of the string/spring would lower the height of the circular path, like a conical pendulum - affecting the radius of its path. Am I going in the right direction .. ?
 
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That's right. Think of a very heavy rod replacing the string. For the same energy, it would revolve at a lower height.
 

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