Finding distance using acceleration and time

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Homework Help Overview

The discussion revolves around a kinematics problem involving a car's motion, specifically its acceleration, coasting, and deceleration phases. The original poster seeks to determine the distance between two stop signs based on given acceleration and time intervals.

Discussion Character

  • Exploratory, Assumption checking, Problem interpretation

Approaches and Questions Raised

  • Participants explore the use of equations of motion to calculate distance, questioning how to apply values for acceleration and time. There is discussion about the need for units and the interpretation of the problem's setup.

Discussion Status

Participants have shared various approaches to calculate distances for each stage of the car's motion. Some have provided guidance on using specific equations, while others express confusion about how to proceed, particularly regarding the final stage of deceleration. There is an ongoing exploration of assumptions and interpretations without a clear consensus on the final solution.

Contextual Notes

There is uncertainty regarding the time taken during the deceleration phase, which leads to questions about how to incorporate it into the calculations. Participants also note the need to clarify the values used in the equations of motion.

  • #31
41.58m?
 
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  • #32
nope, I have given you the equation, just plug the values in.

v^2 = 0^2
u^2 = 25.2^2
a = -3.3

hint: you are slowing down with less acceleration than you sped up, it should be a greater distance than part 1
 
  • #33
96.21?? :p
 
  • #34
WOOOOOO!

Yep, so what is your total distance?
 
  • #35
229.77 :D:D:D:D:D:D:D

OMG u are probably de best tutor i ever had! thaank u soo very much man, u might answer a lot of my questions in the future bcuz I am going to put up lots :D
 

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