1. Not finding help here? Sign up for a free 30min 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!

Work formula Problem

  1. Oct 12, 2006 #1
    I have pretty much figured out the problem, but i am unsure of my work.
    the question reads:
    a 330kg piano slides 3.6m down a 28degree incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. The effective coefficient of kinetic friction is 0.40. Calculate: (a) the force exerted by the man.

    F= 3237.3 N

    Is this the correct formula to use to find the force exerted by the man?
  2. jcsd
  3. Oct 12, 2006 #2


    User Avatar

    Staff: Mentor

    Where is the force due to the friction? The man's job is made easier by the help of friction.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?

Similar Discussions: Work formula Problem
  1. Formula Problem (Replies: 2)

  2. Problem on Work (Replies: 3)