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: Velocity physics question

  1. Dec 11, 2006 #1
    ok, so since velocity has two parts, speed and direction, and since acceleration is defined as a change in velocity, can acceleration be either a change in speed or a change in direction?
  2. jcsd
  3. Dec 11, 2006 #2
    a change in direction is always an acceleration. A change in speed is always an acceleration.

    If one (or both) of those things is changing then there is an acceleration.
  4. Dec 11, 2006 #3


    User Avatar
    Homework Helper

    Take a look at this, specially at paragraph #3: http://www.math.lsa.umich.edu/~glarose/classes/calcIII/web/14_4/" [Broken].
    Last edited by a moderator: May 2, 2017
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook