Dr H's Wild Ride (you can use work-energy theorem or 3 magic equations. you can assume car mass = 100kg but it is not absolutely necessary) (a) If the coefficient of kinetic friction between tires and dry pavement is 0.82. What is the shortest distance in which you can stop a car by locking the brakes when the car is traveling at 28.9m/s (about 65 mi/h)? (b) XC On wet pavement the coefficient of kinetic friction may be only 0.26. How fast should you drive on wet pavement to be able to stop in the same distance as in part? (Note: Locking the brakes is not the safest way to stop.)
Dr H's Wild Ride (you can use work-energy theorem or 3 magic equations. you can assume car mass = 100kg but it is not absolutely necessary) (a) If the coefficient of kinetic friction between tires and dry pavement is 0.82. What is the shortest distance in which you can stop a car by locking the brakes when the car is traveling at 28.9m/s (about 65 mi/h)? (b) XC On wet pavement the coefficient of kinetic friction may be only 0.26. How fast should you drive on wet pavement to be able to stop in the same distance as in part? (Note: Locking the brakes is not the safest way to stop.)
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