Question

The diameter of a wheel of a car is 0.75 m. if the car travels at an average speed of 14 m/s, find the

number of revolutions made by the wheel per minute, giving your answer correct to the nearest
whole number.​

Answer 1

Explanation:

Circumference of wheel = πd = 0.75πm.

How far the car travels per minute

= 60s * (14m/s) = 840m.

Hence number of revolutions per minute

= 840m / 0.75πm

= 356.507....

= 357. (nearest whole number)