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The Effect of Tire Pressure on Stopping Distance

The Effect of Tire Pressure on Stopping Distance. By: Dominic Corbett. Chevy Celebrity. The car being used to test is a 1987 Chevy Celebrity It has 2 disk brakes and 2 drum brakes There is no antilock brake system All the tires have good tread. My Chevy Celebrity. How Brakes Work.

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The Effect of Tire Pressure on Stopping Distance

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  1. The Effect of Tire Pressure on Stopping Distance By: Dominic Corbett

  2. Chevy Celebrity • The car being used to test is a 1987 Chevy Celebrity • It has 2 disk brakes and 2 drum brakes • There is no antilock brake system • All the tires have good tread

  3. My Chevy Celebrity

  4. How Brakes Work • Car brakes work by applying pressure to the decelerator pedal • This forces brake fluid to close calipers around rotors • The calipers rubbing on the rotors creates friction and eventually stops the tires

  5. Purpose • To find if tire pressure really does effect stopping distance in fair weather conditions • This will show how important it is to check the tire pressure on your own car

  6. Hypothesis • I believe that when the tire pressure is at the lowest it will stop the slowest. • The recommended tire pressure will probably stop the car the fastest. • Also having too much pressure in the tires will be dangerous and cause stopping distance to decrease

  7. Materials • 1987 Chevy Celebrity • Tape measure • Chalk • Tape • Air compressor • Tire pressure gauge

  8. Procedure • First inflate all tires to the same pressure • Mark a line on the pavement • Next in a safe, closed, and dry road bring the car to 20 mph • Put the car in neutral • Once passing the tape jam on the brakes as hard as possible till stopping • Mark where the front end stopped and measure from the stopping line

  9. The Procedure

  10. Data

  11. Data cont.

  12. Conclusion • Overall the stopping distances were fairly close • The results matched the hypothesis • One thing I noticed when testing the lower pressure was that the tires would lock up and skid considerably further

  13. Wheels Locking Up

  14. Benefits of Checking Tire Pressure • Reduced stopping distances, • Better handling of the vehicle in a curve or in a lane change maneuver • less chance of hydroplaning on a wet surface, which effects both stopping distance loss of control.

  15. Application • This applies to the real world by showing the effect of tire pressure on stopping distance • The relation to agriculture is through the machinery the machines have tires and if they are not inflated properly they create inefficiencies • Hopefully this shows how important it is to routinely check tire pressure

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