Question

The diameter of a the wheel of a car is 70 cm. How many revolutions will it make to travel 1.5 km






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Answer 1

Answer:

45 but it is wrong sorry

Step-by-step explanation:

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Answer 2

Answer:

The diameter of the wheel is 702=35cm

We will calculate the distance in one revolution by determining the circumference of the wheel.

Circumference of the wheel is given by 2πr, where r is the radius of the wheel.

Then the distance covered in one revolution

is:

⇒ 2(227)(35)=220cm

We will divide it by 10,000 to convert it into km

⇒ 22010,0000km

Hence, 22010,0000km is covered in 1 revolution.

Then, we will divide the given distance by distance covered in one revolution to find the number of revolutions.

⇒ 1.65220×100000=750

Thus, the total number of revolutions is 750