Asked by Niraj Kasyap

A bicycle wheel, diameter 56 cm, is making 45 revolutions in every 10 seconds. At what speed, in kilometer per hour. Is the bicycle travelling?
Answered by Steve
45 rev/10sec * 56π cm/rev * 1km/100000cm * 3600sec/hr = 28.5 km/hr
Answered by Anonymous
192
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