In the first half of the journey, the car drove at a speed of 40 km / h, and the second 60 km / h. Find the average speed along the way.

univerkov | December 3, 2020 | education

Let half of the path be 1, then the whole path is -2. The average speed is found by the formula: V = S / t, where S is the entire path, t is all the time. Let us express time in terms of speeds: t = 1/40 + 1/60 = 1/24. This means that the average speed of the body along the entire path is: V = 48 km / h

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