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: Work sleigh problem

  1. Nov 19, 2007 #1
    A sleigh of mass 120.0kg is pulled by one horse at a constant velocity for a distance of .750 km on a level snowy surface. the coefficient of kinetic friction between the sleigh runners and the snow is 0.250. A) what is the work done by the horse? B) what power must the horse deliver to the sliegh for the trip to take 10.0 mins?

    Could someone point me in the right direction on this one?
    I am lost

    Anyone that can help please let me know I also have some other problems
    Last edited by a moderator: Nov 19, 2007
  2. jcsd
  3. Nov 19, 2007 #2


    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    OK, please post 'em separately and welcome to the Forums. What is the formula for work in terms of the force applied by the horse and the distance over which it acts? If the horse moves at constant speed, what must be its force against friction in light of Newton 1?
  4. Nov 19, 2007 #3
    And for part B, remember that power is merely work/time
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook