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: A modified atwood problem

  1. Oct 17, 2012 #1
    1. The problem statement, all variables and given/known data
    What the time difference between the instance that m2 and m3 hit the floor?
    How far are their landing spots?

    3. The attempt at a solution
    So far I have figured out the normal force of the two blocks each, and then I found the friction of them both.Here is my work so far and the question. I have no clue on what to do next.

  2. jcsd
  3. Oct 17, 2012 #2
    It's an Atwood's machine, so you should be able to modify the Atwood's equation for acceleration to fit the specifications for an incline, and then solve for acceleration. From there, I'm assuming you would use kinematics equations to solve for the time it takes for each block to travel the distance to the ground, and then subtract the time for mass 2 from mass 3 to solve for the time difference.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook