The diameter of the wheel of a car is 77 cm. How many
revolutions will it make to cover a distance of 72.6 m?
Answers
Answer:
Diameter of wheel=77cm
Radius of wheel=Diameter/2
= 77/2 cm
Circumference of wheel= 2πr=2×22/7×77/2
= 242cm
1m=100cm
72.6m=7260cm
Total revolution= 7260/Circumference
= 7260/242
= 30
Step-by-step explanation:
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Given,
Diameter of a wheel of car = 77 cm
Total distance covered = 72.6 m
To find,
We have to find the number of revolutions it takes to cover a distance of 72.6 m.
Solution,
The number of revolutions it will make to cover a distance of 72.6 m is 30.
The radius of a wheel of the car = diameter /2
= 77/2 cm
Circumference = 2πr
= 2 * 22/7 * 77/2
= 242 cm
Distance = 72.6 m
= 72.6 * 100
= 7260 cm
Total number of revolutions = Total distance / Circumference of wheel
= 7260/242
= 30
Hence, the total number of revolutions it will make to cover a distance of 72.6 m is 30.