Question

Find the distance travelled, if the circumference of the wheel is 2.1m, when it completes 200 revolutions.

Answer 1

Find the distance travelled, if the circumference of the wheel is 2.1m, when it completes 200 revolutions.

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Answer 2

Answer:

The perimeter of the wheel is the key to measure the distance covered by it.

If you put a rope around a wheel (so that the rope is the perimeter of the wheel) and let the wheel go, letting the rope stick on the ground as the wheel goes on its way, you see that one rotation of the wheel corresponds exactly to the length of that rope.

So you just have to calculate the perimeter (P) of the wheel with a certain diameter (d):

P = d π = 1,05 π = 3,30 m (approximately)

One rotation of this wheel covers 3,30 m. So, for 100 turns it covers 3,30 x 100 = 330 m.

Answer: 330 m.