Braking Distance - Explained
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238 дней – 1 114 3990:55Опубликовано 4 июля 2012, 23:00
What determines how quickly a car can stop? How do tires and brakes affect braking distance? This video explains an equation that can be used to determine how well a car brakes.
Want to include factors such as rain or ABS no ABS? Here is how to alter the equation. In the original equation, multiply u (frictional coefficient) by acceleration, so the new equation reads:
D=0.5*V^2/(u*a)
Leave a as 1, and change u according to the condition.
With ABS ON: u can be considered 1, since ABS will attempt to maintain peak friction.
With ABS OFF: u will be less than 1, and will equal the frictional coefficient of a tire slipping on pavement.
With RAIN, and ABS ON: u will be less than 1, and will equal the frictional coefficient of a tire on wet pavement.
With RAIN, and ABS OFF: u will be less than 1 (and than with ABS ON), and will be equal to the frictional coefficient of a tire slipping on wet pavement. This is the worst case scenario of the four listed.
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Want to include factors such as rain or ABS no ABS? Here is how to alter the equation. In the original equation, multiply u (frictional coefficient) by acceleration, so the new equation reads:
D=0.5*V^2/(u*a)
Leave a as 1, and change u according to the condition.
With ABS ON: u can be considered 1, since ABS will attempt to maintain peak friction.
With ABS OFF: u will be less than 1, and will equal the frictional coefficient of a tire slipping on pavement.
With RAIN, and ABS ON: u will be less than 1, and will equal the frictional coefficient of a tire on wet pavement.
With RAIN, and ABS OFF: u will be less than 1 (and than with ABS ON), and will be equal to the frictional coefficient of a tire slipping on wet pavement. This is the worst case scenario of the four listed.
Please feel free to rate, comment, and subscribe!
And don't forget to check out my Facebook page:
facebook.com/engineeringexplai...
Also check out my official website: Make suggestions, participate in forums, enter for Car of the Month, learn through logically ordered lessons, read FAQs, and plan your future!
howdoesacarwork.com
NEW VIDEOS EVERY WEDNESDAY!
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