Question

A train moving with a velocity of 54 km /h is accelerated so that its velocity become 72 km per hour in 15 second find the acceleration of the train

Answer 1

☆ Ello ☆


here is your answer :-


velocity of train = 54 km / h


to change into m / s


we multiply by 5 /18

u = 5 / 18 × 54


= 15

same here v =

5/18 × 72km / h

= 20




a = v - u / t



20 - 15 / 15

= 5 /15


=

1 / 3 m /s2



hence your answer is 1 /3 m/ s2



hope it's helped
$thanks$

Answer 2

SOLUTION:-

given , u = 54km/h = 54×5/18 = 15m/s

v = 72km/h = 72×5/18 = 20m/s

t = 15s
__________________________________
acceleration = (v-u)/t

=( 20-15)/15 = 5/15

(acceleration = o.33m/s^2)ans