Bicycle wheel

A bicycle wheel has a diameter of 60 cm. Approximately how many times does the wheel rotate at 2.5 km long trip?

Correct result:

N =  1326

Solution:

d=60 cm m=60/100  m=0.6 m o=π d=3.1416 0.61.885 m s=2.5 km m=2.5 1000  m=2500 m  N=s/o=2500/1.885=1326



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