how many revolutions will the wheel complete... in a journey of 924 m?
2007-03-08 07:33:19 · 9 answers · asked by xxjangoxx 1 in Science & Mathematics ➔ Mathematics
You need to find the circumference of the tire first. That is found by multiplying the diameter times pi.
56 * 3.14 = 175.84 cm
So after 200 revolutions it will have traveled...
200 * 175.84 = 35168 cm
In 924m, or 92400 cm, it will have made...
92400 / 175.84 = 525.47 revolutions
2007-03-08 07:39:50 · answer #1 · answered by riddler_vb 1 · 0⤊ 0⤋
One question for the subject line and one for the body? That's weird. I also have no idea what a "bycyble" is, but I'll assume you mean bicycle.
In one revolution of the wheel, that wheel is going to travel its circumference. C = π D, so in one revolution the bicycle goes 56π centimeters. After 200 wheel revolutions, it will have gone 11200π cm, which is about 351.85m.
For 925 m, just work backwards. If the number of revolutions is R, then R(0.56π) = 924. Solve for R. Notice that I converted the 56 centimeters to meters first.
2007-03-08 07:44:25 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Hi
56 cms / 2=28 cms
28 X3.14116=87.95
87.95X200=1.759kms
so for 924mts
924/0.8795=1050.60
Rgds
Claude
2007-03-08 07:44:08 · answer #3 · answered by claude c 2 · 0⤊ 0⤋
Circumference of the wheel: C = pi x diameter C = pi x 70 C = 219.ninety one cm = one rotation Distance traveled: D = nb of rotations x circumference of wheel D = 2000 x 219.ninety one D = 439,820 answer: 429,820 cm
2016-12-18 08:41:38 · answer #4 · answered by ? 4 · 0⤊ 0⤋
The circumference = the diameter * pi
56 * pi * 200 = 35185.83772 cm or 351.8583772 meters
924 = 56 * pi * x
x = 92400 / (56 * pi) = 525.2113122 revolutions
riddler_vb, you made some rounding errors. Pi is not equal to 3.14, so when you multiply it by large numbers, your rounding is multiplied. It's best to use the actual number as best as you can. :-)
2007-03-08 07:39:23 · answer #5 · answered by Dave 6 · 0⤊ 0⤋
a. 56cm x 200 = 11200 cm or 112 m
b. 924 m / .56m = 1650 revolutions
2007-03-08 07:38:02 · answer #6 · answered by Newbody 4 · 0⤊ 3⤋
Circumference = pi * D
A. 200* pi * 0.56m = 351.2 metres
B. 924/(pi*0.56) = 525.2 revolutions
2007-03-08 07:42:02 · answer #7 · answered by Anonymous · 0⤊ 0⤋
diameter: 56cm = 0.56m
circumference (D*pi)= 0.56pi
924/0.56pi = 525.21 revolutions
2007-03-08 07:38:43 · answer #8 · answered by azncr0wn 2 · 0⤊ 0⤋
well it travells 56cm per rotation so 56*200=11200cm
92400/56=1650 rotatons
2007-03-08 07:39:45 · answer #9 · answered by MLBfreek35 5 · 0⤊ 3⤋