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In bikes it's more common to count teeth rather than sprocket diameters. But if the smaller wheel is half the size it'll turn twice as many times.

Q: How many times does a small gear of 10cm in diameter turns if a big gear of 20cm in diameter turns once in a bicycle?

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Need to find:Distance wheel travels in 1 turn = circumference of wheelcircumference = Ï€ Ã— diameter â†’ diameter = circumference Ã· Ï€333 ft Ã· 37 turns = 333/37 ft/turndiameter = 333/37 ft Ã· Ï€ â‰ˆ 2.86 ft

The circumference of the wheel is Pi multiplied by the diameter (0.705). Divide 1000 meters (1km) by that answer - and you'll have your solution !

81.7 inches

11" Diameter x 3.145159 = 34.5575" Circumference 34.5575" Circum x 150 Revs = 5,183.6278" or 431.9689'

You would need 317 pedal turns are needed to travel a mile on a bicycle.

circumference = diameter × π → diameter = circumference ÷ π Circumference of tyre = distance/rotations = 1320 ft / 180 = 7 1/3 ft → diameter = 7 1/3 ft ÷ π ≈ 2.33 ft

5280 feet/1320 turn = 4 foot circumference 4 foot cirumference/ (pi) = 1.273foot diameter

31 turns

First you have to know the distance you wish to travel. Then you simply calculate the circumfrance of the tire. (2pie*radius) which would give you around 4.77 inches. Divide the distance you want to go by 4.77 and you get the proper amount of turns.

Yes, it is possible to convert the rotational motion of a bicycle wheel into electrical energy using a device called a dynamo. A dynamo is a small generator that contains magnets and a coil of wire. When the bicycle wheel turns, it spins the dynamo, generating electricity that can be used to power lights or charge batteries.

A bicycle odometer was once a mechanical instrument that counts the number of turns of the wheels, and shows the total distance travelled. Nowadays, a bicycle computer does the same thing, but digitally, and showing more than simply distance travelled.

a helical spring has N turns of coil of diameter D, and a second spring made of same material and of same wire diameter has N/2 turns of coil of diameter 2D. if stiffness of first spring is k, then stiffness of second spring is