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!

Finding the magnitude of Torque

  1. Oct 7, 2012 #1
    1. The problem statement, all variables and given/known data

    A force F = 75.0 N is applied to a box with dimensions y = 2.51 m, x = 1.62 m. The force is applied at an angle θ with respect to the horizontal. For θ = 35.0°, calculate the magnitude of the torque produced by F about the point O.
    (reference attached picture)

    2. Relevant equations


    3. The attempt at a solution

    For the other questions like this i just used t=rF when the angles were 0 and 90deg.
    but now that it is at a 35deg angle the same formula doesnt work.


    Attached Files:

  2. jcsd
  3. Oct 7, 2012 #2
    In your formula for the torque, the angle θ corresponds to the angle between the radial vector (connecting the points O and F) and the direction of the force.
    In your image, draw this radial vector and then you can see what the angle between the radial vector and the force is. Use this angle in the formula.
  4. Oct 8, 2012 #3
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook