a 150 metre long train crosses a bridge of length 250 metres in 25 seconds find its velocity
Total distance when train reaches end of bridge
=(150+250)m
=400 m
s=vt
400=v(25)
v=16 m/s
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To find the velocity of the train, we need to first determine the total distance covered by the train, which is the sum of the length of the train and the length of the bridge. Then, we can divide this distance by the time taken to cross to calculate the velocity.
The total distance covered by the train is the length of the train plus the length of the bridge:
Total Distance = Length of Train + Length of Bridge
= 150 meters + 250 meters
= 400 meters
Next, we will calculate the velocity using the formula:
Velocity = Distance / Time
Given that the time taken to cross is 25 seconds, we can substitute these values into the formula:
Velocity = 400 meters / 25 seconds
= 16 meters per second
Therefore, the velocity of the train is 16 meters per second.