A car travelling at a constant speed of 30mls for 20seconds was Suddenly deccelerated when the driver sighted a pothole. It took the driver 6 sec to get to the pothole with a reduced speed of 18mls. He maintained the steady speed for an other 10seconds to cross the pothole then the brakes where applied
and the car came to rest 5seconds later.
praw the Velocity time graph for the journey.