Revolutions Help

[blink1987]

Homework Statement

Sam drops his ring in the mall. It goes rolling away from him at a velocity of 3.0 m/s. It has a radius of 0.50cm. After rolling 1.0 m how many revolutions has it made?

Homework Equations

v_cm= rw

The Attempt at a Solution

v_cm
3.0x 2 pi = 18.84
0.50x 18.84= 9.42

 

[LowlyPion]

Welcome to PF.

How do you see the velocity affecting the number of revolutions?

If the circumference is 2*.5*π ... or π cm, then isn't the number of revolutions the number of circumferences it has traversed? 100 cm / π cm ?