Question

A train is traveling at a speed of 90kmperhour .Brakes are applied as to produce a uniform acceleration of -0.5mper s square find how far the train will go before it is brought to rest

Answer 1

Here is your answer
u= 90km/hr
=25m/s
a=-0.5m/s2
v=0

v2-u2=2as
0-125=2(-0.5)s2
s=25
therefore required distance is 25 meters