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: Acceleration to displacement

  1. Aug 31, 2007 #1
    1. two knights on horseback start from rest 88.0 m apart and ride directly toward each other to do battle. Sir George's acceleation has a magnitude of 0.300 m/s^2, Sir Alfred's has a magnitude of 0.200 m/s^2. Relative to Sir George's starting point, where do the knights collide?

    2. a= (v-v0)/(t-t0), v=(x-x0)/(t-t0)

    3. 0.300m/s^2=(v-0)/t, v=0.300m/s^2*t, 0.300m/s^2*t=(x-x0)/t, I don't know where to go from here!
    Last edited: Aug 31, 2007
  2. jcsd
  3. Aug 31, 2007 #2


    User Avatar
    Homework Helper

    You have a formula for displacement in terms of time and acceleration... try to use that to get the time when they collide...
  4. Aug 31, 2007 #3
    x=(0.300m/s^2 *t^2)/2 ?
  5. Aug 31, 2007 #4
    nevermind, I got it now!
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook