Question

the diameter of the wheel of a heavy vehicle is 91 cm. find the distance travelled by the vehicle making 100 revolutions

Answer 1

Diameter of the wheel of a car = 70 cm.

The circumference C of the wheel is = dπ

C = 70 x π cm 

C = 70 x 22/ 7 = 220 cm

For each rotation of the wheel, the car travel a distance equal to the circumference of the wheel. 1000 revolutions correspond a distance d traveled by the car is

distance = 100 x 220cm = 22000 cm = 220 meters



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