A commercial claims that a car can stop on a dime (17.9mm). If a car is initially traveling at 13.4m/s, what acceleration would the car experience coming to a stop in that short distance?
The Attempt at a Solution
I recognize that the acceleration may be negative since the car is coming to a stop. So i kept that in mind as I tried solving.
I first converted 17.9mm to m and got 0.179m.
I then tried to draw it out and label values.
- Initial velocity: 13.4m/s
- Acceleration: ?
- Displacement: 0.179m
- I'm assuming that the final velocity is 0m/s since its coming to a stop.
The question is also multiple choice.
So I'm thinking that the answer maybe either be A or D. I'm just not sure what steps to take next to get to either conclusion.