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Was Dr. Paxton Swisher wrong?
This just in! Recent studies have proven the respected Dr. Paxton Swisher's work wrong! Is Swisher still credible? Or will a new study take his place in the hall of fame? Find out next.
Lets examine a lamborghini, the fastest car in the world, in its motion.
lets say it accelerates from 0km/h to 100 km/h. in 2.8 s This is the same as going from 0 m/s to 27.8 m/s in 2.8 s. When you solve for the acceleration using the equation:
a = Vf-Vo/t = 27.8-0/2.8 = 9.92 m/s2
Here, however, do we find the problem. In Dr. Swisher's work he said that his acceleration was 6.86 m/s2. He could not possibly be going almost as fast as the quickest car in the world on his skateboard! Wondering what went wrong? follow the arrows to find out.
What was used
What is the real way
In Paxton's work the Ff was used as if the wheels were sliding
in the direction of the arrow above. However . . .
In actuality, the wheel was turning like
the arrows shown here.
The friction that Dr. Swisher thought to be used is called Kinetic Friction. This is used when an object is sliding. However, we have just discovered that the wheels were infact rotating which requires a whole new type of friction. This is called Rolling Friction. Rolling Friction, like Kinetic Friction, has a coefficient of friction. However, the coefficient of Rolling Friction depends on many factors which Paxton was not able to locate. Many other factors like air drag and the friction of the bearings as well.
By Paxton Swisher
Using Logger Pro to determine the real acceleration we came up with:
Dry : .15 m/s2
Wet : .59 m/s2
even though the numbers are different my claim was correct! Thanks for reading my presentation!