Question

- A train starting from a railway
station and moving with uniform
acceleration attains a speed
40 km h-1 in 10 minutes. Find its
acceleration.
​

Answer 1

Answer:

Known Terms:-

u = Initial speed

v = Final speed

a = Acceleration

t = Time

Given:-

Initial speed of the train, u = 0 km (Because train starts from the rest.

Final speed of the train, v = 40 km/h =  × 40 = 11.11 m/s.

Time taken to attain the speed = 10 minutes = 10 × 60 = 600 sec.

To Calculate:-

Acceleration of the train.

Solution:-

Putting all the values, we get

Hence, Acceleration of the train is 0.0185 m/s².

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Answer 2

Answer:

a=v-u/t

10min=600s

40×5/18m/s

200/18-0/600

=200/10800=1/24m/s^2