Solving Acceleration Problems in a Sports Car Rally

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Homework Help Overview

The problem involves a sports car rally where a car accelerates uniformly from rest. The specific parameters include an acceleration of 9.0 m/s² and a distance of 100 meters, with a target time of 4.5 seconds to complete the distance. The original poster is seeking to determine if the driver can meet the time requirement.

Discussion Character

  • Exploratory, Assumption checking, Problem interpretation

Approaches and Questions Raised

  • Participants are discussing the principles of accelerated motion and kinematic equations. Questions about the original poster's understanding of these concepts and previous attempts at solving the problem have been raised.

Discussion Status

The discussion is ongoing, with participants encouraging the original poster to articulate their understanding and previous work on the problem. Some guidance has been offered regarding the use of kinematic equations, but no consensus or resolution has been reached yet.

Contextual Notes

There is an emphasis on learning and understanding rather than simply providing answers. The original poster's knowledge of kinematic equations and their application to the problem is under consideration.

Manbe
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I can't figure this problem out. Any help is greatly appreciated!

At a sports car rally, a car starting from rest accelerates uniformly at a rate of 9.0 m/s2 over a straight-line distance of 100m. The time to beat in this event is 4.5 s. Does the driver do it? If not, what must be the acceleration be to do so?

Thanks very much.
 
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Why don't you start by telling us what you know about accelerated motion. What have you done so far on the problem?
 
have you learned the kinematic equations?
 
X=(1/2)at^2
......use that equation (thats t squared)

X=distance
a= the accel.
t=time

I'd tell u the answer but what's the fun of not learning anything ;)...to see if he beats it see if he crosses the finish line (100m) in 4.5s with that accel...if he doesn't solve for a.
 

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