Question

A train is traveling at a speed of 60km/hour. Brakes are applied so as to produce a uniform acceleration of -0.5m/s*s .find how far the train will go before it is brought to the rest.

Answer 1

u-60km/hr=60×5/18
=1.66
v-0
a- -0.5m/s×s

third eq. of motion
v×v=u×u +2as
o=25×25 +2×-0.5×s
s=25×25-0
s=625m