12at2 = v(t-6)
Apply conditions for minima, get value of 't' and then find v accordingly.
A train starts from a station with a constant acceleration of 0.4 m/s2. A passenger arrives at a station 6 s after the end of the train left the very same point. What is the least speed at which the passenger should run to catch the train?
4.8m/s
12at2 = v(t-6)
Apply conditions for minima, get value of 't' and then find v accordingly.