A road roller of radius 1.4cm makes 10 revolutions. The total distance covered by it.
Answers
Given:
A road roller with a radius of 1.4 cm makes 10 revolutions.
To find:
The total distance covered by it.
Solution:
The radius of the road roller, r = 1.4 cm
No. of revolutions the road roller makes = 10
We know,
Circumference of the roller = 1 revolution made by the roller
∴ The circumference of the road roller =
Now,
The total distance covered by the roller is,
= 10 × [The distance covered in 1 revolution]
= 10 × 8.8
= 88 cm
Thus, the total distance covered by the road roller is → 88 cm.
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Given : A road roller of radius 1.4cm makes 10 revolutions.
To Find : total distance covered
Solution:
Distance covered in one revolution = Circumference
Radius = 1.4 cm
Circumference = 2π (Radius)
π = 22/7
=> Circumference = 2(22/7)(1.4)
=> Circumference = 8.8 cm
Distance covered in one revolution = 8.8 cm
=> Distance covered in 10 revolutions = 10 * 8.8 = 88 cm
The total distance covered by it. = 88 cm
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