The greatest possible acceleration or deacceleration that a train may have is ''f' and its maximum speed is 'v' and the total distance is āsā. What is the minimum time in which the train can get from one station to another in minimum time?
1
\(t = \frac{s}{v} + \frac{v}{f}\)
2
ā\(t = \frac{s}{v}\)
3
\({{t}} = \frac{{{s}}}{{{v}}} - \frac{{2{{v}}}}{{{f}}}\)
4
\({{t}} = \sqrt {\frac{{2{{s}}}}{{{f}}}} \)