Motion in A Straight Line

Question: A car, starting from rest, accelerates at the rate f through a distance S, then continues at constant speed for time t and then decelerates at the rate \[\frac{f}{2}\] to come to rest. If the total distance traversed is 15 S, then



1) \[S = \frac{1}{2}f{t^2}\]
2) \[S = \frac{1}{4}f{t^2}\]
3) \[S = \frac{1}{{72}}f{t^2}\]
4) \[S = \frac{1}{6}f{t^2}\]
Solution: Explanation: Explanation
non-uniform-motion

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