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: Quick easy physics question (Center of mass)

  1. Mar 5, 2005 #1
    I'm having a difficult time with this question, and I'm sure it's easy. The question is, find the center of mass of the three-mass system. Specify relative to the left-hand 1.00kg mass.
    Mass1 = 1kg Distance = 0m?
    Mass2 = 1.5kg Distance = .50m
    Mass3 = 1.1kg Distance = .75m

    I'm having trouble because when you use the equation
    CoM = (m1x1 + m2x2 + m3x3)/(m1+m2+m3), the first m1x1 becomes 0 and I'm sure that's not right.
  2. jcsd
  3. Mar 6, 2005 #2


    User Avatar
    Staff Emeritus
    Science Advisor
    Gold Member

    No, that's fine. What do you get?
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook