A sports car moving at constant speed travels 150 m in 4.00 s. If it then brakes and comes to a stop while decelerating at a rate of 6.0 m/s2 how long does it take to stop?
This is what I have so far but I do not know if it is correct.
150/4=37.5m/s
Final v=0, 6s
37.5/6=6.25 seconds.