Asked by taylor

am confused. don't know what formula to use for this problem. A car traveling at a speed of 30.0m/s encounters an emergency and comes to a complete stop. How much time will it take for the car to stop if it decelerates at -4.0m/s?
Answered by Denial
T=(vf-vi)/a= (0-30)m/s/(-4.0)m/s then T=7.5s ...it is as simple as that.
Answered by rabia
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