Answer:
Speed of train = 16.67 m/s
Step-by-step explanation:
The translated question is
Annabelle took the Polar Express to the North Pole! The Polar Express is 100 meters long and takes 30 seconds to cross the Santa Fe 400 meter ice bridge. How fast is the train?
Total distance traveled by train to cross the bridge = Length of bridge + Length of train
Total distance traveled by train to cross the bridge = 400 + 100 = 500 meter.
Time taken for this = 30 seconds.
Speed = Distance / Time = 500/30=16.67 m/s
