A long freight train has a mass of 5×(10^6) kg and is initially traveling at 25 m/s. The train needs to stop, so the engineer applies the brake which creates a resistive force of 10^6 N.
(a) Find the time it takes the train to stop.
(b) Determine the distance the train travels before stopping.
(c) Graph x(t), v(t) and a(t).