How far will a car travel before coming to rest?

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Homework Help Overview

The problem involves a car that is decelerating uniformly, with an initial velocity of 30 m/s and a final velocity of 15 m/s over a distance of 75 m. The main question is how far the car will travel before coming to a complete stop.

Discussion Character

  • Exploratory, Mathematical reasoning

Approaches and Questions Raised

  • Participants discuss the relevant equations for uniformly accelerated motion, specifically mentioning the equation v² = u² + 2as. There is an emphasis on applying this equation to find both acceleration and the additional distance traveled.

Discussion Status

Some participants have suggested a specific equation that may be applicable to the problem. There is an ongoing exploration of how to apply this equation effectively, but no consensus has been reached on the approach or solution.

Contextual Notes

The original poster has requested a detailed answer, indicating a desire for thorough understanding rather than just a solution. This may influence the depth of discussion and exploration of concepts.

chris783
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A car is decelerating uniformly. Its velocity changes from 30m/s to 15m/s in 75m. How much further will it travel before it comes to rest?

- Please, i need a detail answer. Thanks!
 
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What equation do you think is relevant to this question?
 
v^2=u^2 + 2as, i think this equation is relevant to the question.
 
chris783 said:
v^2=u^2 + 2as, i think this equation is relevant to the question.
That's the one you need. Apply it twice: once to find the acceleration and again to find the final distance.
 

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