Question

A train starts from rest and accelerate uniformly at the rate of 5 m/s2 for 5 sec. Calculate the velocity of train in 5 sec.

Answer 1

use
v=u+at
where v is final velocity
u is initial velocity
a is acceleration
t is time
now given
u=0
a=5m/sec^2
t=5sec
so, v= 0+5.5
=25m/sec

Answer 2

u=0 m/s
v= ?
t= 5 sec
a= 5m/s2
by using v=u+at
v=0+5*5
v=25m/s
so, the velocity of the train will be 25m/s