Question

a train is travelling at a speed of 90 km per hour . brakes r applied so as to produce a uniform acceleration of -0.5 m per sec Sq .find how far the train will go before it is brought to rest .

Answer 1

2as=v2-u2
2(-0.5)(s)= 0-(25)2
-1s=-625
s=625m
So the train will stop after traveling 625m