Problem i have the answer to, but need the formula

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Homework Help Overview

The problem involves a scenario where a truck and a car are traveling towards each other, with specific speeds and deceleration. The objective is to determine the point at which they meet, utilizing kinematic equations.

Discussion Character

  • Exploratory, Assumption checking, Problem interpretation

Approaches and Questions Raised

  • The original poster attempts to recall the kinematic equations relevant to the problem but expresses uncertainty about which ones to use. Some participants encourage the poster to identify the equations from their resources, emphasizing the importance of effort in understanding the material.

Discussion Status

The discussion is ongoing, with participants providing encouragement and prompting the original poster to share their attempts. There is a recognition of the poster's effort despite the challenges faced due to limited resources.

Contextual Notes

The original poster mentions having limited resources due to part of their notebook being ruined, which may affect their ability to reference necessary equations.

tommy1
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Homework Statement


A truck is traveling at 17 m/s to the north. The driver of a car, 450 m to the north and traveling south at 22 m/s, puts on the brakes and slows at 3.5 m/s2. Where do they meet?


Homework Equations


i know it is just the basic kinematic equations. but i don't really know which one or anything


The Attempt at a Solution


i got the answer to be 381 meters. I did this months ago in the beginning of the year so i kind of forget how to do a lot of this. I am reviewing for my final so if you could show me the equations i would really appreciate it.
 
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tommy1 said:

Homework Equations


i know it is just the basic kinematic equations. but i don't really know which one or anything

Surely the equations are listed in your book and/or notes. You really should try to figure out which one it is. Even if you guess wrong, it's still better than not trying at all. You won't pass the final anyway if you don't put forth the effort.
 
Tom Mattson said:
Surely the equations are listed in your book and/or notes. You really should try to figure out which one it is. Even if you guess wrong, it's still better than not trying at all. You won't pass the final anyway if you don't put forth the effort.

i have tried to figure this one out. It is the only one i am stuck on from this chapter. part of my notebook got ruined so i am working with limited resources. do not worry though i am putting effort into passing my exam. I am not lazy.
 
tommy1 said:
i have tried to figure this one out.

Great, then please show us one of your attempts.
 
v = u + at

s = ut + (1/2)at^2.

And look after them! :smile:​
 

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