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: Pulley Weight problem

  1. Oct 25, 2006 #1
    Two weights W1 and W2 are suspended from the ends of a light string passing over a smooth fixed pulley. If the pulley is pulled up at an acceleration 'g', then what will be the tension in the string? Solution : [te
    x]\frac{4w_{1}w_{2}}{w_{1} + w_{2)}[/tex]

    I have calculated that the tension in the spring assuming that the pulley is not accelerating. I know to find the acceleration also(if the pulley is not acclerating). How do I proceed?

    thanks for your time.
  2. jcsd
  3. Oct 25, 2006 #2


    User Avatar
    Staff Emeritus
    Science Advisor
    Gold Member

    Hint: both the masses will be accelerated upwards at g. So what will be the additional tension in the string.
  4. Oct 25, 2006 #3
    thanks! I got it.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook