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: Position and Velocity Vector

  1. Jan 1, 2009 #1
    A point M is located by the vector r(t), which depends on time, but the length of r(t) is constant. Show that the velocity v(t) of M is perpendicular to r(t).
  2. jcsd
  3. Jan 1, 2009 #2


    User Avatar
    Science Advisor
    Homework Helper
    Gold Member
    Dearly Missed

    Well, what can you say about the quantity:
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook