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

Loss in kinetic energy

  1. Aug 14, 2006 #1

    xto

    User Avatar

    What formula should i use to calculate
    the loss in kineti energy during braking and
    the power dissipated as heating in the brake
    do i just use ke=1/2mv^2 and work done =force x distance ?
     
  2. jcsd
  3. Aug 14, 2006 #2

    Andrew Mason

    User Avatar
    Science Advisor
    Homework Helper

    Yes. The braking force x stopping distance (assuming constant braking force) is equal to the loss of kinetic energy of the vehicle.

    AM
     
  4. Aug 14, 2006 #3
    And if it's not constant, you can integrate the dot product of the force vector and the differential x-vector.

    If you want the power of heat generation, you will need to find how much energy is being dissipated (i.e. how much kinetic energy is lost) per unit of time.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?