Question

a train starting from rest attains a velocityof 72km per hour in 5 minutes .assuming the acceleration uniform find the accleration.

Answer 1

u= 0 
v= 72 km/h = 20 m/s
t = 5 min = 300 sec
as, v= u+at
⇒20 = 0 + 300a
⇒a = 20/300 = 1/15
      = 0.067 m/s²