# Homework Help: Calculating angular displacement of clockhands

1. Feb 24, 2010

### DeeAussie

1. The problem statement, all variables and given/known data
What is the a.d of each of the following hands of a clock in 1h?
the second and?
the minute hand?
the hour hand?

2. Relevant equations
That's what I'm looking for

3. The attempt at a solution
I'm having trouble getting it on paper, just a description of how one of you might crack this would be wonderful.

thank you

2. Feb 24, 2010

### collinsmark

Going around a circle exactly once corresponds to $$2 \pi$$ radians (of angular displacement). Going around the circle twice is twice that. Going half way around the circle is 1/2 that, and so on.

So what's the angular displacement (i.e. how many radians are traversed) of a hand that goes around exactly once? One that goes around 60 times? And 60 x 60 times?