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?

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Answer 1 · 2018-02-02T17:27:37

#"Period of wheel :0.26 " "sec.#

#"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#