Annabelle is taking the train to see her boyfriend on Valentine's day! The train is 100 meters long and it takes 30 seconds to cross a 400m bridge. What speed is the train going at?per hour how much kilometer?
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Speed = distance upon time
Distance=length of train + length of bridge
Distance = 100+400
= 500
Speed= 500÷30
=16.66m/s
Now in km/h
500÷1000×3600÷30
=60 km/h
darkavenger18:
please mark my answer as brainliest
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if u know what I mean
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