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: Friction physics problem help

  1. Jul 28, 2008 #1
    http://img187.imageshack.us/img187/5202/f1xj9.th.png [Broken]

    M is on the point of sliding:
    0 = MA g - T => T = MA g .... (1)
    0 = T - (0.35)(150 g) .... (2)
    Substitute (1) into (2) : MA = (0.35)(150) = 52.5 kg.

    http://img187.imageshack.us/img187/787/f2co6.th.png [Broken]
    is the answer 398.5 kg?

    http://img187.imageshack.us/img187/5175/f3ix6.th.png [Broken]

    is the answer 189.5 kg?

    http://img179.imageshack.us/img179/8738/f4fv4.th.png [Broken]

    is the answer 36.5 N?
    Last edited by a moderator: May 3, 2017
  2. jcsd
  3. Jul 29, 2008 #2
    Re: Friction

    I dont think the second one is correct. I stopped right here because it was tideous to do all the solutions just to check your answers. Post your way of solutions.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook