What has a greater acceleration?

[George16]

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?

 

[mgb_phys]

What do you think?

Useful data, a Porsche 911 can do 0-60mph in 8secs and 60-0 in 105ft

 

[ideasrule]

Is this a trick question? (Hint: think about the sign of acceleration)

 

[Matterwave]

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!)

 

[denverdoc]

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.