Physics: A car....?

A car is traveling at 14.0 m/s, and the driver sees a traffic light turn red. After 0.560 s (the reaction time), the driver applies the brakes, and the car decelerates at 9.00 m/s2. What is the stopping distance of the car, as measured from the point where the driver first sees the red light?

2 Answers
Jan 24, 2018

I got #18.73m#

Explanation:

Have a look:
enter image source here

Jan 24, 2018

#"Another solution way ..."#

Explanation:

  • the velocity-time graph of the car has been given below.
  • The area below velocity-time graph is equal to displacement of the car.
  • The car is moving at constant velocity of 14 m/s between the points A and B.
  • The velocity of the car decreases between the points B and C.
  • The sum of the green and red areas is answer to your problem..

enter image source here