Question

a train starting from a railway station at a speed of 40 km per hour acceleration of the train is 0.9 metre per second square in 10 second find the final velocity​

Answer 1

Explanation:

given that,

initial velocity (u)=40km/h

$= \frac{40 \times 5}{18} \frac{m}{s}$

=200/18m/s

acceleration=0.9m/s^2

time =10 sec

we know that,

$v = u + at$

v=200/18+0.9×10

=200/18+9

=200+171/18

=371/18

=20.6m/sec