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: More Yr 11 HW help

  1. Sep 9, 2008 #1
    1. The problem statement, all variables and given/known data
    How much energy could be derived from slowing a body of mass 5.8Kg from 2.3m/s to 1.5m/s?

    2. Relevant equations

    3. The attempt at a solution
    I dont even know what formula to use here so if someone could give me a couple of formlula that would be good to start with. thanks
  2. jcsd
  3. Sep 9, 2008 #2
    You could find the change in kinetic energy (energy of motion). Ke = (1/2)*m*v^2
  4. Sep 9, 2008 #3
    I have tried that and it doesnt work for me??
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook