A wheel of perimeter 220 cm rolls on a level road at a speed of 9 km/h. How many revolutins does the wheel make per second?

A wheel of perimeter 220 cm rolls on a level road at a speed of 9 km/h. How many revolutions does the wheel make per second?

A wheel of perimeter 220 cm rolls on a level road at a speed of 9 km/h. How many revolutions does the wheel make per second?

Diameter of wheel of cycle is 21 cm. The cyclist takes 45 minutes to reach a destination at a speed of 16.5 km./hr. How many revolutions will the wheel make during the journey?

The diameter of a cycle wheel is 126 cm. A cyclist takes 16(1)/(2) minutes to reach the destination at a speed of 72 km/hr. How many revolutions will the wheel make during the journey?(Take pi=22/7)

The diameter of a car wheel is 60 cm. How many revolutions does If make in travelling 5 km?

The diameter of the driving wheel of a bus is 140 cm. How many revolutions per minute must the wheel make in order to keep a speed of 66 km per hour?