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: Determine the coordinaes of the x-y plane through which the wrench passes

  1. Oct 3, 2012 #1
    1. The problem statement, all variables and given/known data
    In tightening a bolt whose center is at point O, a person exerts a 56-lb force on the ratchet handle with his right hand. In addition, with his left hand he exerts a 10-lb force as shown in order to secure the socket onto the bolt head. Determine the equivalent force-couple system at O. Then find the point in the x-y plane through which the line of action of the wrench passes.

    Imaged attached

    2. Relevant equations

    3. The attempt at a solution

    I calculated the resultant and moment as follows:

    Rx = 0
    Ry = -10 lb
    Rz = -56 lb

    Mx = (-56lb)(2.1 inches) = -117.6 ln-in
    My = (-56 lb)(6.5 inches) = -364 lb in
    Mz = 0

    I fairly certain that the above values are correct. My confusion is with calculating the point on the x-y plane through which the line of action passes. I would appreciate any help. Thanks

    Attached Files:

  2. jcsd
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?
Draft saved Draft deleted