Question

A metro train accelerates uniformly from rest to a velocity of 120ms-1 in half minute find the value of acceleration of the train​

Answer 1

Step-by-step explanation:

initial velocity, u = 0 (as it starts from rest)

final velocity, v = 120 m/s

time taken, t = 30. (half minute = 60/2= 30)

acceleration, a = change in velocity / time taken

a = (v - u )/ t

a = (120 - 0 ) / 30

a = 120 /30

a = 4m/s^2

therefore the acceleration of the train is 4 m/s^2