a train is starting from a railway station and moving with uniform acceleration speed of 40 km/h in 20 minutes what is its acceleration
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initial velocity = 0
final velocity = 40km /hr
time = 20 min = 1/3 hr
acceleration = change in velocity / time
=> a= (40-0)/(1/3)= 40×3= 120 km/ hr....
final velocity = 40km /hr
time = 20 min = 1/3 hr
acceleration = change in velocity / time
=> a= (40-0)/(1/3)= 40×3= 120 km/ hr....
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