# Angular displacement question

1. Mar 31, 2015

### goonking

1. The problem statement, all variables and given/known data
I play swing a yo yo above my head in a circular horizontal motion.
The yoyo travels around 370 degrees.
what is the angular displacement?
2. Relevant equations

3. The attempt at a solution

would I say the angular displacement is 10 degrees? or still 370 degrees? or would both work? which one is preferred if both work?

2. Mar 31, 2015

### BvU

A horse working to keep a water wheel going walks in circles. It knows the difference between 0 degrees and 36000 degrees displacement !

Idem for a sailor operating a winch: he does ten times as much work for a 3600 degree angular displacement as for a 1 full turn angular displacement. But his angular position after an integer number of turns is indistinguishable from the initial angular position.

On a practical note: it depends. So some judgment is indispensable.

3. Mar 31, 2015

### PWiz

What is the difference between displacement and distance? Can you apply the same concept to angular displacement?

4. Mar 31, 2015

### goonking

displacement is how the distance from starting point to ending. which is 10 degrees

distance is total distance traveled, which is 370 degrees.

but would i be wrong if i said displacement is 370 degrees?