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finnish_translation.jpgStopping Distance as Visual Geometry

Pysähtymismatka näkemisen geometriana

I dare say that even this approach has not been presented elsewhere. The below shows the braking distance, calculated by using the formula in physics. The reaction time is generally accepted one second. This gives the travelled total stopping distance, for example a speed of 50 km/h, 26,2 m. Another method at the right is using natural logarithms.

Braking on a dry and clean asphalt

Speed       Reaction time    Braking    Tot.             Logarithmic Calculation

km/h               m                      m            m                                   

  30                8.33                   4.42        12.8             Known data 13 m

  40               11.1                    7.9          19,0             40/(Ln pii)6 =   17.8 m

  50               13.9                  12.3          26.2             50/(Ln pii)5 =   25.5 m  

  63               17.5                  19,5          37.0             63/(Ln pii)4 =   37.0 m

  80               22.2                  31.4          53,6             80/(Ln pii)3 =   53.3 m

100               27,8                  49,2          77,0           100/(Ln pii)2 =   76.3 m

120               33,3                  70.6        103,9           120/(Ln pii)  =  104.8 m

125               34.7                  76.6        111.3           125/(Ln pii)  =  109.2 m

Visual Geometry

aikadilaatio_099995.jpg

The stopping distance is increased by a factor of

1,252 /1,03(3)2 = 1,4641

When the speed is increased by 25 %, increases the stopping distance, but proportionally reduces. The stopping distance "get tired", as a runner get tired.

Stopping distance is four-dimensional phenomenon, involving dimensionalities of length, width, height and time. Time is assiciated to time dilation, which is part of the essence of value space. After these comes proportionality in things, including the value of the golden ratio 1.618.

 

 

tuoteavaruus_1.jpg

The value space

                            Pascal's Triangle

  1 dim                             1.1

  2 dim                       1.1 x 1.1                  = 1.21

  3 dim                   1.1 x 1.1 x 1.1             = 1.331

  4 dim             1.1 x 1.1 x 1.1 x 1.1          = 1.4641       Length - Width - Height - Time

Proportion  1.1 x 1.1 x 1.1 x 1.1 x 1.1     = 1.61051     (The Golden ratio 1.618)

EP-calculated stopping distances 

km/h     Stopping distance          Calculation

    30                12.8                       13 m the known data

    40                19.0                       13.00 m x 1.4641              = 19.03 m                   1.

    50                26.2                       19.03 m x 1.4641 / 1.033  = 26.97 m                    2.

    63                37,0                       26.97 m x 1.4641 / 1.033  = 38.22 m                    3.

    80                53.6                       38.22 m x 1.4641 / 1.033 = 54.18 m                     4.

  100                77.0                       54.18 m x 1.4641 / 1.033 = 76.79 m                     5.

  125              111.3                       76.78 m x 1.4641 / 1.033 = 108.83 m

 The speed of 100 km can calculate:

13 m x 1.46415 / 1.0334 = 76.80 m

The calculated 76.79 m is the exact value

EP-Calculation accuracy is five steps

The fifth step of the time dilation are values of 0.25 and 1.033

Many of the readers say them to be better brakers than the table shows. My best heard is 21 meters starting from 100 km/h. The tabled value 49.2 m. That was a motor cycle and police did measure the braking length. Now this is up to you believe the braking distance, but then we have a new physics.

Braking Distance in Physics

The Car Stopping Distance 

The Car Stopping Distance Logarithmically

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13.2.2015*9:45 (1011 - 420)
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