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: Atwood Machine Problem please help

  1. Sep 13, 2011 #1
    Atwood Machine Problem please help :)

    If one of the masses of an Atwood machine is 1.9 kg, what must be the other mass if the displacement of either mass is to be 0.1 m in the first second after release?
     
  2. jcsd
  3. Sep 13, 2011 #2
    Re: Atwood Machine Problem please help :)

    Assuming mass-less strings,etc,

    Calculate the required acceleration to travel 0.1m in 1 sec from the Kinematic equation S=(1/2)at2 (here t=1 sec).

    Now assuming tension in the string to be T,
    Write equations of motion(F=ma) for both masses,and eliminate the tension to obtain your result
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook