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!

Pulley Acceleration Question

  1. Sep 29, 2009 #1
    1. The problem statement, all variables and given/known data

    Two masses, 1.98 kilograms and 2.68 kilograms, are attached to a lightweight cord that passes over a pulley as shown below.

    What is the acceleration of the smaller mass? Hint: For a system of connected objects, the unbalanced external force acts on the mass of the entire system.

    2. Relevant equations

    w=gm

    Fnet=ma

    3. The attempt at a solution

    1.98+2.68=4.66kg

    4.66kg(9.8)=45.668 N

    45.668N/1.98kg = 23.1 m/s/s

    Is this correct?
     
  2. jcsd
  3. Sep 29, 2009 #2
    any help?
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook