a bicycle wheel makes 75 revolutions per min. to maintain a speed of 8.91km/hr. find the diameter of the wheel..??
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per minute 75 revolution so,per hour 75into60 revolution I.e. 4500 revolution
now distance=speed*time
so, distance in 4500 revolution is 8.91 km
so, one revolution distance is 8.91km / 4500
hence diameter is know you equate by
pi Diameter=8.91km/4500
now distance=speed*time
so, distance in 4500 revolution is 8.91 km
so, one revolution distance is 8.91km / 4500
hence diameter is know you equate by
pi Diameter=8.91km/4500
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