Question

a train travelling at 40km/h speeds up to 70km/h in 5sec .what is it accleration​

Answer 1

Answer:

1.65m/s

Explanation:

Initial velocity of train = 40km/h

= 40*1000/60*60

= 11.11 m/s

final velocity of train = 70 km/h

= 70*1000/60*60

= 19.4 m/s

time taken by train = 5sec

acceleration (a) = v-u/t

= 19.4 - 11.1/5

= 8.3/5

= 1.65 m/s

follow and like