PLEASE!!!! I NEED THIS ANSWER IN 15 MINUTES!!!! A particle travels 17 times around a 15-cm radius circle in 30 seconds. What is the average speed (in m/s) of the particle?

Question

anonymous · Answer

What is the circumference of a circle?$$C = 2 \pi R$$This is the distance the object travels in one trip around the circle. Therefore, total distance$$d = 17 \cdot C = 34 \pi R$$

Velocity is defined as$$v = {\Delta d \over \Delta t} = {34 \pi R \over 30}$$

anonymous · Answer

thank you is R the radius?