A small blue dot has been painted on the tread of the rear tire?

Posted on 2014-11-18 06:02:00 in Physics by SYLVIA

a) What is the angular speed of the tires? Answer 14 rad/s

b)What is the speed of the blue dot when it is 0.80m above the road?
Answer NO CLUE

c)What is the speed of the blue dot when it is 0.40m above the road?
Answer 7.9 m/s

Please help me find the answer to the b part, I really cannot figure it out, the answer should be in m/s. I tried
7
5.6
16
4
and they are all wrong. Anybody knows how to find the correct answer?

---

Answer Comment

No Answers Posted Yet.