A train crosses a bridge in 20s. If the bridge is 180m long then find the length of the train.
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It took me a long time to come with the answer
Let the length of the train be x metres
Given, bridge length = 180m
t = 20s
SPEED = D/t
= 180/20
= 9 m/s
This statement means that in 1 second the train moves 9m. This it would take 9 times it length to pass the bridge.
Thus 9x = 180
=> x = 20m
Thus the length of the train is 20m
Hope this logic works
Let the length of the train be x metres
Given, bridge length = 180m
t = 20s
SPEED = D/t
= 180/20
= 9 m/s
This statement means that in 1 second the train moves 9m. This it would take 9 times it length to pass the bridge.
Thus 9x = 180
=> x = 20m
Thus the length of the train is 20m
Hope this logic works
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