What has a greater acceleration?

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Homework Help Overview

The discussion revolves around comparing the acceleration of a car when the accelerator is fully pressed versus when the brake pedal is applied forcefully. The context involves understanding acceleration in terms of both positive and negative values, as well as vehicle performance metrics.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • Participants are questioning whether the scenario is a trick question and discussing the implications of defining positive and negative acceleration. There are references to vehicle performance data and how it relates to acceleration metrics.

Discussion Status

The discussion is active with various interpretations being explored. Some participants are providing data points for consideration, while others are questioning the assumptions regarding the definition of acceleration in this context.

Contextual Notes

There is a mention of the need to define the positive direction for acceleration, as well as variability based on different car models and their performance statistics.

George16
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Homework Statement


Is the acceleration of a car greater when the accelerator is pushed to the floor or when the brake pedal is pushed down hard?
 
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What do you think?

Useful data, a Porsche 911 can do 0-60mph in 8secs and 60-0 in 105ft
 
Is this a trick question? (Hint: think about the sign of acceleration)
 
Last edited:
I don't think it can be a trick question since, if it were a trick question, the axis aren't defined. (No one said going forward was positive!)
 
depends on the car. You look at vehicle stats in a magazine, usually they are stated in terms of distancefrom 60mph to zero. Maybe a 100 ft-200 ft. If you have a car that gets to 60mph in 100 feet, you be driving a fuelie.
 

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