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: Pulleys relating to physics question

  1. Apr 11, 2010 #1
    Diagram kkk.jpg

    1. The problem statement, all variables and given/known data
    Consider the two body system above. There is a 0.25kg object accelerating across a rough surface. The sliding object is attached by a string to a 0.1kg object which is suspended over a pulley. the coefficient of kinetic friction is 0.183. Calculate the acceleration of the block and the tension in the string.

    2. Relevant equations

    3. The attempt at a solution

    i got the acceleration to be 1.5...m/s^2 i dont know if it is right

    fn=fg=mg 0.25 x9.81m/s^2 =2.4525N
    ff=0.183 x 2.4525N =0.4488075 ff=fg since fn=fg

    fg2= 0.1 x 9.81 =0.981 then subtracted them to get fnet then divided by the total mass to get 1.502025m/s^2
    Last edited: Apr 11, 2010
  2. jcsd
  3. Apr 11, 2010 #2


    User Avatar
    Homework Helper

    How did you get that answer? What exactly did you do? Can you please post your working?
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook