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 and Motion Question

  1. Oct 25, 2009 #1
    1. The problem statement, all variables and given/known data
    A man sits on a bosun's chair that dangles from a massless rope, which runs over a massless pulley and back down to the man's hand.

    mass of man and chair: 95kg

    <---These are the ones that i could do.---->
    1) With up force is the man suppose to pull go up at constant velocity?
    2) With an upward acceleration of 1.3 m/s^2?
    3) If another man below pulls on the rope from below, what force?
    4) With an upward accell of 1.3 m/s^2?

    2. Relevant equations
    What is the magnitude of force on the ceiling from the pulley system in 1), 2), 3), 4) ?

    3. The attempt at a solution
    I can't visualize if there would be any force different, unless they would all be the same..
  2. jcsd
  3. Oct 25, 2009 #2


    User Avatar
    Homework Helper

    The force will depend on the acceleration because of F = ma.
    Any other forces involved?
    Looks rather tricky to me - better start with a free body diagram.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook