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Bicycle wheels with a diameter of 26 inches, travelling 35 miles per hour, are turning 452 revolutions per minute. 35 miles per hour is 36,960 inches per minute (25 *5280 * 12 / 60) 26 inches diameter is 81.7 inches circumference, so the revolutions per minute is 36,960 / 81.7 or 452 revolutions per minute.
It will travel: 50*12*pi = 1885 inches rounded to the nearest integer
If a circle has a diameter of 24 inches its circumference is: 75.4 inches (diameter x Pi = circumference).
17 micrometers = .00066929133858267 inches.
Circumference = 7.5 inches implies that diameter = 2.387 inches
Bicycle wheels with a diameter of 26 inches, travelling 35 miles per hour, are turning 452 revolutions per minute. 35 miles per hour is 36,960 inches per minute (25 *5280 * 12 / 60) 26 inches diameter is 81.7 inches circumference, so the revolutions per minute is 36,960 / 81.7 or 452 revolutions per minute.
I need help
To solve, you need how far is travelled in 1 minute and the circumference of the wheel (in the same units) which gives how far the wheel travels in one revolution; then dividing the former by the latter will give the revolutions per minute: I'll work in inches: There are 63360 inches in 1 mile and 60 minutes in 1 hour, thus: 10mph = 10 x 63360 ÷ 60 inches per minute = 10560 ipm circumference = π x diameter = 26π inches ⇒ revolutions per minute = 10560 ipm ÷ 26π ins ~= 129.3 rpm
It will travel: 50*12*pi = 1885 inches rounded to the nearest integer
If the wheel made 3000 revolutions and covered 45000 pi inches, then one revolution would cover 15 pi inches. That is the circumference. The circumference is equal to 2 times the radius times pi. Then the radius is 7.5 inches.
The inches in a diameter = 2 X inches in the radius. Or, inches in a diameter = inches in circumference / pi
What is a "8 inch ball" ? Is 8 inches the diameter ? Then its diameter is 8 inches. Is 8 inches the radius ? Then its diameter is 16 inches. Is 8 inches the circumference ? Then its diameter is about 2.546 inches (rounded).
First, the circumference of an 18 inch wheel is 18 * pi = 56.549 inches. 80 miles per hour is 80 * 5280 * 12 = 5069000 inches per hour. This is 5069000 / 3600 = 1408.06 inches per second. So, 1408.06/56.549 = 24.90 rev per second.
the diameter would be 7 inches
Useful information: 86 miles tire radius of 16 inches In order to find how many revolutions the tire undertakes you must divide the amount traveld by the circumference of the tire (The length of tire tread). To find the circumference you multiply the diameter by Pi (3.14) The diameter is twice the radius or 32 inches 32 in. x 3.14 = 100.48 in. 86 miles equals 5,448,960 inches 5448960 in. /100.48 in. = 54229.3 revolutions
Diameter = 117/pi inches
Twelve inches is a length. It can be a diameter, but if it is a diameter, you would simply say 'The circle is 12 inches diameter'. So; how big is it - it is 12 inches.