Question

A trian starting from rail way station attians a speed of 21m/s in one minute . Find its accleration

Answer 1

Initial speed of the train = 0 m/s

Final speed of the train = 21 m/s

Time taken by the train to attain 21 m/s = 1 min = 60 seconds

Let the acceleration of the train be a.

Using first equation of motion:

$v = u +at$

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

$a = \frac{21}{60}$

a = 0.35 m/s^2

Hence, the acceleration of the train is 0.35 m/s^2