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How many revolutions will a wheel make in travelling at 2 kilometers if its diameter is 700 millimeters?
Wiki User
∙ 14y ago
If the diameter is 700 mm then the radius is 700/2 = 350mm
The circumference of the circle is 2πr = 2π.350 = 2199.115 mm
1 kilometre = 1000 metres = 1000000 mm : 2km = 2000000mm
Number of revolutions = distance travelled ÷ circumference of wheel.
2000000 ÷ 2199.115 = 909. 46 revolutions
Wiki User
∙ 14y ago
The circumference of the wheel can be calculated using the formula C = π*d, where d is the diameter of the wheel. Substituting the values given (d = 700 mm), the circumference is approximately 2199.11 mm. Since there are 1000 mm in a meter, the distance traveled is 2,000 meters. Therefore, the number of revolutions can be found by dividing the distance traveled by the circumference of the wheel. This results in approximately 0.91 revolutions.
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