What is the Constant Angular Velocity of a Watch's Second Hand?

[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??

 

[Doc Al]

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

OK.

However, if we look it on the other way, it has angular acceleration

What other way? The angular velocity is constant.

so theta= (w node + w final)/2 * t gives 2∏/30 .. Where is my mistake??

What are you solving for? Using this you'll find an angular displacement of 2π radians in 60 seconds.