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!

If i have no velocity in one direction then there is no

  1. Oct 30, 2015 #1
    if i have no velocity in one direction then there is no acceleration ?
    i deal with acceleration for sphere in fluid so i use spherical polar co ordinates (ρ,θ,Φ)
    i have no velocity in Φ then there is no acceleration in Φ direction ?
    i want to be sure
     
  2. jcsd
  3. Oct 30, 2015 #2
    Well you can't make that conclusion...imagine you have a ball thrown vertically...at the top it has no velocity but has acceleration g...so what I mean is that the current velocity in certain direction might be 0 but that does not mean that there is no acceleration in the direction...it depends on the problem of course :)
     
    Last edited by a moderator: Oct 30, 2015
  4. Oct 30, 2015 #3
    ok thanks
    i understood
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook