A bicycle wheel has an outside radius of 35.0 cm. If the bicycle is traveling at a speed of 30.0 km/h, what is the period of rotation of the wheel?

1 Answer
Feb 2, 2018

Period of wheel :0.26 sec.

Explanation:

circumference of the bicycle wheel can be calculated using formula s=2πr

s=2π35=219.9cm=2.199m

We have to find out how many times the bicycle's wheel hasturned .

30km=30000meters.

n:number of revolution

n=30.0002.199=13642.6

How many seconds have passed since the wheel was turned once? we must answer the question.

1h=3600sec.

T:Period

T=360013642.6

T=0.26sec