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=2 pi r

s=2*pi*35=219.9cm=2.199m

"We have to find out how many times the bicycle's wheel has""turned ."

30 km=30000meters.

"n:number of revolution"

n=30.000/(2.199)=13642.6

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

1h=3600 sec.

"T:Period"

T=3600/(13642.6)

T=0.26 sec