Question

a train starts from rest and moves with a constant acceleration of 2m/s2 for half a minute. The brakes are applied and the train comes to rest in one minute after applying brakes find the total distance moved by the train?

Answer 1

v= u + at

v = 2 x 30

v= 60 m/s

now

v^2 -u^2 = 2as

s = 3600 / 2 x2

s = 900 m

and the distance travelled before it

s = at^2

s = 2 x 900

s= 1800

so totally distance
= 1800 + 900
= 2700 m