The train travels 30 kilometers in 40 minutes, calculate the average speed of the train.
| June 22, 2021 | education
Initial data: S (distance traveled by the train) = 30 km = 30 * 10^3 m; t (train travel time) = 40 min = 2/3 h = 2400 s.
1) Train speed in km / h: V = S / t = 30 / (2/3) = 30 * 3/2 = 45 km / h.
2) Train speed in m / s: V = S / t = 30 * 10^3/2400 = 12.5 m / s.
Answer: The average train speed is 45 km / h or 12.5 m / s.
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