lizi5
contestada

PLEASE HELP ME!!! ITS EMERGENCY!!! LOTS OF POINTS!!!!

The train that braked was moving at an acceleration of 0.4 m / s ^ 2 for 25 sec. Then its speed is the braking moment and the braking distance is?

SO I THINK ITS a=0,5m/s

t = 25sec

and we need to found V and S?