Wednesday

April 23, 2014

April 23, 2014

Posted by **jake** on Sunday, February 6, 2011 at 10:45am.

- maths -
**dave**, Sunday, February 6, 2011 at 10:56am1km = 1000 m

100cm = 1 m

convert to meters and divide

- maths -
**helper**, Sunday, February 6, 2011 at 11:19amDiameter d = 20 cm

Circumference C = pi * d

C = 3.14 * 20 = 62.8 cm in one revolution

62.8 cm

100 cm = 1m

62.8/100 = 0.628 m

0.628 m in one revolution

1 km = 1000 m

1000/0.628 = 1592.36 revolutions

**Related Questions**

Math - The diameter of a bicycle wheel is 65 cm How many revolutions are needed ...

Physics - Find the number of revolutions of a bicycle wheel of diameter 0.7m ...

math - One wheel has a diameter of 30 inches and a second wheel has a diameter ...

Physics - A bike wheel rotates uniformly through 2 revolutions in 3 seconds. a) ...

math - how far will the bike travel if the wheel makes 5 revolutions? the ...

Math - The wheel on Kirk's bike has a diameter of 27 inches. How far does the ...

Physics(Please respond) - A person is riding a bicycle, and its wheels have an ...

physics - find the revolutions of a bicycle wheel of diameter 0.8m when the bike...

precalc - a 21-speed bike has varying top speeds dependent on the gear it's in. ...

precalc - a 21-speed bike has varying top speeds dependent on the gear it's in. ...