Question

A train start from initial is '0'a uniform acceleration of a train is 10m\s2. find the speed of the train after 15 minute​

Answer 1

Answer:

$Hello!$

$initial velocity = 0$ $m/s$

$time taken= 15$ $minutes$

                $= 900 seconds$.

$acceleration = 10m/s^{2}$

$finalvelocity=9000m/s$

To calculate speed, we need the distance traveled (s),

$v^{2} -u^{2} = 2as$

$9000^{2} -0^{2} = 2(10)s$

$8100000= 20s$

$s =\frac{8100000}{20}$

$distance = 4050000 m$

Now as we have distance = 4050000 m , we can calculate speed,

$speed=\frac{distance}{time}$

         $=\frac{4050000}{900}$

         $= 4500 m/s$.