The diameter of the wheel of a car is 70 cm .how many revolutions will it make to travel 1 km?
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Step-by-step explanation:
Diameter of wheel of car = 70 cm
Radius of wheel of car = 35 cm = 0.35 m
Distance to be travelled = 1 km = 1000 m
distance travelled = circumference of wheel * no. of revolutions
No. of revolutions = distance travelled / circumference of wheel
= 1000 / 2 * pi * r
= 500 / 22/7 * 0.35
= 500 / 22 * 5/100
= 100 * 100/ 22
= 5000 / 11
No. of revolutions = 454. 55
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