How Fast Will We Go Without Moving Our Feet?

If you need to relax at the airport and you are not in a rush, try the moving walkway at Lambert Airport. To move forward 279 feet and 10.5 inches, you can move at the rate of 24.3 inches per second or 1.38 mph, whichever way you choose to look at it.

The data my classmates and I gathered is as follows:

Data Sheet

TIME IN MIN & SEC     TIME IN SECONDS           VARIANCES (TIME - AVERAGE TIME)
      2     17.780                               137.780                         -0.406
      2     18.700                               138.700                         +0.514
      2     18.400                               138.400                         +0.214
      2     18.290                               138.290                         +0.104
      2     18.150                               138.150                         -0.036
      2     18.710                               138.710                         +0.524
      2     17.435                               137.435                         -0.751
      2     18.105                               138.105                         -0.081
      2     18.340                               138.340                         +0.154
      2     17.990                               137.990                         -0.196
      2     18.150                               138.150                         -0.036
                              TOTAL         1,520.050                         +0.004

Variation

Slowest - Fastest = V

138.71 - 137.435 = 1.275

For Column 2, take the sum of the times and divide by number of times recorded.

1520.05/11 = 138.186

So t = 138.186

Our given distance is 279 ft 10.5 in, convert from feet to inches to get distance.

279(12) + 10.5 = d     then     d=3,358.5 in

If d=3,358.5 inches t=138.186 seconds, solve for r.

d = r t

r = d/t

r = 3,358.5 inches/138.186 seconds = 24.304 inches/second

If you would like to calculate mph, know there are 63,360 inches in one mile, 60 seconds in one minute and 60 minutes in one hour.

63,360(in/mi)/3,358.5(in/walkway) = 18.865 walkways per mi

18.865 (walkways/mi) 138.18 (sec/walkway) = 2,606.07 seconds to go one mile

2,606.07(sec/mi)/60(sec/min) = 43.43 minutes to go one mile

60(min/hr)/43.43(min/mi) = 1.38mph

And that is how you can have a little walkway fun.

For more information and ideas about this project you may link to a page written by one of the following math artists: Danielle, Darlene, Kellie, Jill's First and Third Web Page, Nanyal, Kevin, Crystal, Rachel, Christina, Jennifer, Candice, Vincent, Esther and Melinda. Most of us are in this picture but not in order of names.

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