Question

1.      The velocity of a train changes from 0 to 60 in 20 seconds. Assuming that it is uniformly accelerated, what is the acceleration in m/s squared? 

Answer 1

u=0m/sec

v=60m/sec

t=20m/sec

v=u+at

$a=\frac{v-u}{t}$

Put value

$a=\frac{60-0}{20}=3m/sec^2$