Omega of the second hand?

1. Jan 4, 2013

ehabmozart

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. Jan 4, 2013

Staff: Mentor

Re: omega of the second hand??

OK.
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.