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: Newton's Second Law Problem

  1. Oct 9, 2013 #1
    1. The problem statement, all variables and given/known data
    There is an attachment of a FBD, and you have to solve for the following:

    3. The attempt at a solution
    I know you will have to equate equations, but I dont know how to go about doing this.
    I do know that Fg= m x 9.8, I isolated various equations and subbed them into each other and got no answer.

    Attached Files:

  2. jcsd
  3. Oct 9, 2013 #2
    Remember that the net force = mass X acceleration.
    You have the acceleration, you have the two forces acting on the mass, and mass m.

    You are almost there.
  4. Oct 9, 2013 #3
    -9.8m+110 = m


    a= Fnet/m
    a=0.98 m/s/s

    Is this correct?
  5. Oct 9, 2013 #4
    Looks good. However, you might use some more significant digits as the last part, a should be 1.0 as given.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted