1. PF Contest - Win "Conquering the Physics GRE" book! Click Here to Enter
    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!

Omega of the second hand?

  1. Jan 4, 2013 #1
    omega of the second hand??

    Consider a second hand in the watch. What is the constqant angular velocity.
    Logicaly, i would say it travels through 1 rev in 1 min so, it is 2∏/60
    However, if we look it on the other way, it has angular acceleration
    so theta= (w node + w final)/2 * t gives 2∏/30 .. Where is my mistake??
  2. jcsd
  3. Jan 4, 2013 #2

    Doc Al

    User Avatar

    Staff: Mentor

    Re: omega of the second hand??

    What other way? The angular velocity is constant.
    What are you solving for? Using this you'll find an angular displacement of 2π radians in 60 seconds.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook