What is the Most Effective Method for Minimum Stopping Distance in a Car?

AI Thread Summary
To achieve the shortest stopping distance for a car on a horizontal road, the most effective method is to apply the brakes hard enough to just prevent slipping. This approach maximizes friction between the tires and the road, allowing for optimal deceleration. Simply locking the wheels can lead to a loss of control and increased stopping distance due to skidding. Pumping the brakes may also be less effective compared to maintaining optimal friction. Understanding the balance between brake force and tire traction is crucial for minimizing stopping distance.
ubergewehr273
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Homework Statement


In order to stop a car in shortest distance on a horizontal road, one should,
(a) Apply brakes very hard so that the wheels stop rotating
(b) Apply the brakes hard enough to just prevent slipping
(c) Pump the brakes (press and release)
(d) Shut the engine off and not apply brakes

Homework Equations


NIL

The Attempt at a Solution


I think the solution might be (a) because after the wheels stop rotating altogether, friction would stop the car entirely.
But I might as well be wrong.
 
Physics news on Phys.org
Friction stops the car in all setups. But how fast does it stop? What is the force that stops it?
 
Well, there is no mention of it in the question...
 
Is this a question from the driving test?
 
Ashes Panigrahi said:
Well, there is no mention of it in the question...
Those are questions for you to answer.
 

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