The tourist covered 14 km in 2 hours, then 5.5 km in 1 hour. What is the average speed of its movement?

univerkov | May 6, 2021 | education

Initial data: t1 (time for a tourist to pass the first section) = 2 hours; S1 (length of the first section) = 14 km; t2 (time for a tourist to pass the second section) = 1 hour; S2 (length of the second section) = 5.5 km.

The average speed of a tourist is calculated by the formula: Vav. = S1.2 / t1.2 = (S1 + S2) / (t1 + t2).

Let’s calculate: Vav. = (14 + 5.5) / (2 + 1) = 19.5 / 3 = 6.5 km / h.

Answer: The average speed of a tourist is 6.5 km / h.

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