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: Force Problem

  1. Sep 17, 2008 #1
    Force Problem (urgent)

    http://maxupload.com [Broken]


    Y: Fnet = 0
    n - wcos40 = 0
    n = wcos40

    X: Fnet = ma
    1N + wsin40 -Fk = ma
    1N + wsin40 -(.2)(wcos40) = ma
    1N + 1.29 - .306 = .2a
    a = 9.9 m/s2

    I am doing it right way. I asked b/c i feel something is wrong......

    Please help its urgent
    Last edited by a moderator: May 3, 2017
  2. jcsd
  3. Sep 18, 2008 #2


    User Avatar
    Homework Helper

    Re: Force Problem (urgent)

    Your approach seems right to me. I noticed you were using g=10m/s2 for the acceleration due to gravity instead of the more correct g=9.8m/s2; is that value what your class is supposed to be using?
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook