Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Calculate power lossess against road gradients

  1. Nov 21, 2009 #1
    i want to calcculate the power lossess of a 60 cc single cylinder water cooled engine against the 5% road gradients.can any one help?
  2. jcsd
  3. Nov 21, 2009 #2


    User Avatar

    Staff: Mentor

    Welcome to the PF.

    What is the context of your question? What vehicle is this small engine in? What speed is the vehicle moving? Is this just a paper calculation, a simulation, or do you intend to build it for a school project?
  4. Nov 21, 2009 #3


    User Avatar
    Science Advisor
    Gold Member

    To calculate the power required to drive up a hill at a certain speed, calculate the vehicle's vertical speed (speed*grade), and then multiply by the vehicle's mass and G. The engine's dispplacement and cooling are not relevant in this problem.


  5. Nov 23, 2009 #4
    thnx for ur response.this is basically a school project and we have to build a three wheeler car, 2 wheels at the front and one at the rear and it is to be driven at 30kmph.thnx alot once again.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook