1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Centripetal Motion

  1. Feb 10, 2008 #1
    1. The problem statement, all variables and given/known data
    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?

    2. Relevant equations

    3. 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 .. ?
  2. jcsd
  3. Feb 10, 2008 #2

    Shooting Star

    User Avatar
    Homework Helper

    That's right. Think of a very heavy rod replacing the string. For the same energy, it would revolve at a lower height.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook