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

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Homework Help Overview

The discussion revolves around determining the most effective method for achieving minimum stopping distance for a car on a horizontal road. The original poster presents several options regarding braking techniques and seeks to identify the optimal approach.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • Participants explore different braking methods, questioning the implications of each technique on stopping distance. Some participants raise inquiries about the role of friction and the forces involved in stopping the car.

Discussion Status

The discussion is ongoing, with participants sharing their thoughts on the effectiveness of various braking strategies. Some guidance is offered regarding the importance of friction, while others express uncertainty about the specifics of the question and its context.

Contextual Notes

There is a lack of information regarding the conditions of the road and the vehicle's speed, which may influence the effectiveness of the proposed methods. Additionally, the relevance of the question to a driving test is questioned, indicating potential assumptions about the context.

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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