Physics, asked by ramachandiran, 10 months ago

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A train starts from rest and accelerats uniformly
for 20s to attain a velocity 90km/h. find
its acceleration​

Answers

Answered by Anonymous
4

Answer:

hope you understand

Explanation:

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Answered by Anonymous
6

Answer:

1.25 m/s²

Explanation:

Given:

Initial velocity = u = 0 m/s

Final velocity = v = 90 km/h

90 km/h = 90 \times \frac{5}{18} = 25 m/s

Time = 20 seconds

To find:

Acceleration of the train

Acceleration = \frac{v-u}{t}; where v= final velocity, u= initial velocity and t= time

Acceleration = \frac{25-0}{20}

Acceleration = \frac{25}{20}

Acceleration = 1.25 m/s²

The train will move with an acceleration of 1.25 m/s² which means it will increase its speed by 1.25m/s every second

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