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A train starts from rest and accelerats uniformly
for 20s to attain a velocity 90km/h. find
its acceleration
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Answered by
4
Answer:
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Explanation:
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Answered by
6
Answer:
1.25 m/s²
Explanation:
Given:
Initial velocity = u = 0 m/s
Final velocity = v = 90 km/h
90 km/h =
Time = 20 seconds
To find:
Acceleration of the train
Acceleration = ; where v= final velocity, u= initial velocity and t= time
Acceleration =
Acceleration =
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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