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!

Energy, work, power unit 3 question

  1. Apr 23, 2012 #1
    1. The problem statement, all variables and given/known data

    The diagram provided shows a man pulling a box across the floor. Assume that the force of the friction can be ignored and that the acceleration of the box is 1.27 m/s. Find the angle to the horizontal that the man must pull.

    65N figure located on the rope the person is pulling
    15 kg is the mass of the box
    Angle is theta so basically the variable that needs to be found


    2. Relevant equations
    Fnet=ma
    Fnet=Fcos[theta]
    I believe these equations are involved


    3. The attempt at a solution
    Not sure how to put this altogether and solve. Dont have an answer sheet so i cant check the answer. :(
     
  2. jcsd
  3. Apr 24, 2012 #2

    tiny-tim

    User Avatar
    Science Advisor
    Homework Helper

    Welcome to PF!

    Hi Dcpc10! Welcome to PF! :wink:

    Use components of force and acceleration in the horizontal direction …

    what do you get? :smile:
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Energy, work, power unit 3 question
Loading...