- #1
zmike
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Safer to skid or not?
I think I got the question right, I am just not sure if I had covered all aspects of the problem (unfortunately, my textbook doesn't have answers).
Is it safer to slam the brakes (therefore locking the wheel) and skidding to a stop OR is it safer to slam the brakes as hard as possible so that the car doesn't skid? (on regular road conditions)
From a previous question, I calculated the rate of deceleration of a car with JUST applied force or JUST kinetic friction. Strangely the one with just kinetic friction (skidding) slowed down quicker. Therefore slamming the brakes and skidding should stop the car faster (also sliding friction is greater than rolling friction).
EDIT: In the next chapter, my textbook says anti-lock brakes are safer to stop a car with? but wouldn't the car decelerate slower than skidding?
thanks
I think I got the question right, I am just not sure if I had covered all aspects of the problem (unfortunately, my textbook doesn't have answers).
Homework Statement
Is it safer to slam the brakes (therefore locking the wheel) and skidding to a stop OR is it safer to slam the brakes as hard as possible so that the car doesn't skid? (on regular road conditions)
The Attempt at a Solution
From a previous question, I calculated the rate of deceleration of a car with JUST applied force or JUST kinetic friction. Strangely the one with just kinetic friction (skidding) slowed down quicker. Therefore slamming the brakes and skidding should stop the car faster (also sliding friction is greater than rolling friction).
EDIT: In the next chapter, my textbook says anti-lock brakes are safer to stop a car with? but wouldn't the car decelerate slower than skidding?
thanks
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