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!

Pushing a box up an inclined plane

  1. Apr 30, 2009 #1
    I need to calculate the efficiency of a inclined plane if a 60 pound box is being pushed up it... The inclined plane is 16 feet long (The plane itself, not the base) and it is raised up 4 feet high.


    2. Relevant equations

    efficiency= useful work output/total work input
    w=fd
    w= work
    f= force
    d= distance

    3. The attempt at a solution

    I have The total amount of work you are putting out is 480 ft.lb ... but im not sure how to get the total work input...
     
  2. jcsd
  3. Apr 30, 2009 #2
    Is the box being pushed up at a constant speed, or is it accelerating?
     
  4. Apr 30, 2009 #3
    Is there friction that needs to be accounted for?
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Pushing a box up an inclined plane
Loading...