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!

Rotational inertia of a rod that has mass on one end

  1. Apr 9, 2015 #1
    1. The problem statement, all variables and given/known data
    a 3 kg mass is on the end of a metal rod which is pivoted at one end. the mass of the rod is 2kg its length is 4 meters

    2. Relevant equations

    3. The attempt at a solution
    the rotational inertia of the rod itself is 10.6 but i dont know how the 3kg mass at the end would effect things
  2. jcsd
  3. Apr 9, 2015 #2


    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    Assuming the mass at the end has negligible size , what is the I of a particle of mass m about a pivot point , and then note the I of the rod-mass system is the sum of the I's of its parts.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted

Similar Discussions: Rotational inertia of a rod that has mass on one end