Solve Car Impulse Physics Problem 1: Acceleration, Distance & Speed

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Homework Help Overview

The problem involves a car that is decelerating linearly from an initial speed of 50 m/s to a speed approaching zero over a distance of 100 m. The specific question focuses on determining the distance traveled when the car's acceleration reaches -10 m/s², with a stated answer of 60 m.

Discussion Character

  • Exploratory, Assumption checking, Problem interpretation

Approaches and Questions Raised

  • The original poster attempts to calculate the time and acceleration but expresses uncertainty about how to find the distance of 60 m during the acceleration phase. Other participants ask for clarification on what has been tried and suggest sharing more details about the understanding of the problem.

Discussion Status

The discussion is ongoing, with participants seeking clarification and further assistance. There is a focus on understanding the steps taken so far, and participants are exploring different aspects of the problem without reaching a consensus on the next steps.

Contextual Notes

Participants are working within the constraints of a homework problem, which may limit the information they can share or the methods they can use. There is also a mention of a specific answer, which may influence the direction of the discussion.

madahmad1
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1. A car moving along a straight road starts to decrease its speed linearly with distance travelled, such that its speed drops from 50 m/s to a value which would approach zero after 100 m. What distance will have been traveled when the car`s acceleration is -10m/s^2 /. Answer is 60m , but how can i do the steps?
 
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Hi madahmad1! :smile:

You should tell us what have you tried, so that we know how to help you.

Is there any part of this question you don't understand?
 
ok, i got that time t=5 , by using dividing 50/10. Also, i got that the car accelerates at 12.5 m/s to cover 100m from at 50m/s to 0 m/s velocity. But i do not know what to do next? How can i get that the car covered a distance of 60 m during that time?
 
madahmad1 said:
<< berkeman has deleted the content of the e-mail that was quoted here. The issue has been dealt with. Thanks, tiny-tim. >>

erm … no! :frown:
 
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so is my work correct? what should i do?
 
any help please?
 
any ideas? any hints? i cannot figure out how the answer comes out to be 60 m
 

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