1. Not finding help here? Sign up for a free 30min 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!

Newton's Second Law of Motion

  1. Oct 19, 2007 #1
    An applied force accelerates mass A at a rate of 6.0m/s^2. The same force applied to mass B accelerates the mass at a rate of 8.0m/s^2. If the same force were used to accelerate both masses together, what would be the resulting acceleration be?
     
  2. jcsd
  3. Oct 19, 2007 #2

    mjsd

    User Avatar
    Homework Helper

    set up a set of equations using F=ma for different m and a
     
  4. Oct 19, 2007 #3
    write the second law for the first case, the second case and the third case

    F= (mass of a)*(6.0)
    F= (mass of b)*(8.0)
    F= (mass of a + mass of b)*(acceleration)


    the first two equations give us the mass of a and mass of b in the form:

    m=F/a

    substitute them into the third equation and solve for acceleration. the force cancels out.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Newton's Second Law of Motion
Loading...