Question

The diameter of a wheel of a car is 63 cm. Find the distance travelled by the car during the period, the wheel makes 1000 revolutions.

Answer 1

It may be noted that in one revolution, the cycle covers a distance equal to the circumference of the wheel.

Given the diameter of the wheel = 63 cm

We know that circumference of the wheel = π d

= 227 x 63

= 198 cm.

Thus, the cycle covers 198 cm in one revolution.

Therefore the distance covered by the cycle in 1000 revolutions = (198 x 1000)

= 198000 cm

= 1980 m.