Question

i have a car wheel project and i need the measures of three car wheels but I can't seem to find the measures of three car wheels and once I do that do I just use the circumference to find the distance? im sorry im just really confused

Answer 1

well, I guess you would do it this way



once you get the radius you can easily find the circumference of the wheel.

\[C = \pi*2r \]

Answer 2

@JociDiamandis

Answer 3

i see, how do i find out how many rotations it goes will it just be the circumference?

Answer 4

well, so my guess is that the number of rotations is the time it takes for the wheel to move a distance of the circumference. so I guess this would depend on how fast the wheel is moving.

Answer 5

ah okay because im trying to see how many rotations a wheel would go with certain measurements for 10,000 miles

Answer 6

suppose we had a wheel with radius 1 foot
then the circumference is 2 * pi *1 = 2pi feet

Answer 7

so number of revolutions of the wheel = distance travelled / circumference

Now 10,000 miles = 5280 * 10,000 feet

so the answer will be 52,800,000 / 2 pi

Answer 8

so grab your calculator and work it out
Tell me what you get.

Answer 9

16,806,761.9?

Answer 10

to get the correct answer note that you need the 2 measurements to be in the same unit. 9 in this case feet).

Answer 11

okay i see

Answer 12

thats not correct - didid you miss out the 2 when you divided/

Answer 13

i think you divided by pi instead of 2pi

Answer 14

would it be 8403380.9?

Answer 15

right

Answer 16

okay thank you i understand now!

Answer 17

good
yw