Question

the diameter of a wheel is 28 cm how many Revolution will it take to travel 352 m

Answer 1

Well first you'd need to calculate the circumference of the wheel.


Using 2pi r.

Where r is the radius, which is half of the diameter.

All must be in metres. So half the diameter is 0.14m. So 2 x pi x 0. 14 = 0.879m. This is the measurement all the way round the wheel.

So this would tell you how far it would go in one revolution. Now you only need to divide the distance by the circumference of the wheel.

352m/0.879m =400.45 revolutions.




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Answer 2

First of all we convert m in cm
therefore
352m= 35200cm
According to question
diameter of wheel = 28cm
Radius of wheel = 14cm
Circumference of wheel = 2*(22/7)*14
= 2*22*2
= 88 cm
Revolution taken by wheel to travel 35200cm or 352m
= 35200cm/88cm
= 400
...... I hope it will help you