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 lost by speeding car while drinving on a soft surface

  1. Jul 19, 2009 #1
    energy lost by speeding car while drinving on a soft surface
    how much more energy does a car need to continue driving at a constant speed if it sinks 1cm into a soft material.


    car weight 1000kg
    car speed 30mph
    friction is neglected
     
  2. jcsd
  3. Jul 19, 2009 #2

    tiny-tim

    User Avatar
    Science Advisor
    Homework Helper

    Welcome to PF!

    Hi emusheyev! Welcome to PF! :wink:
    Well, the energy lost goes into deforming the material (rather like rolling resistance, which is mostly the energy lost in deforming the tyres).

    We need to know a lot more about the material to answer the question.

    Did you have a specific material in mind? :smile:
     
  4. Jul 20, 2009 #3
    i have no material in mind
    but i would like to test with different materials to find which one causes the least energy loss
     
  5. Jul 20, 2009 #4
    You're going to do the experiment yourself? Sounds interesting =)

    Rubber mats ought to be suitable I think, they're pretty common, and have varying degrees of "softness".
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook