Question

Suppose the circumference of a bicycle wheel is 2 meters. If it rotates at 1 revolution per second when you are riding the bicycle, then your speed will be: A) 3.14 m/s. B) 1 m/s. C) 2 m/s. D) 3 m/s. E) 6.28 m/s.

Answer 1

Answer:

(c) speed will be 2 m/sec

Explanation:

We have given circumference C = 2 meters

Angular velocity = 1 rev/sec =1×2π rad/sec

We know that circumference $C=2\pi r$ , where r is the radius of circumference

So $2=2\pi \times r$

r = 0.318 meter

Linear velocity $v=r\omega =0.318\times 2\times \pi =2m/sec$

So option C will be the correct option