Determine the average speed of the body, if the whole path is 18 km, for 10 km you spent 10 minutes, for the rest 15 minutes?
Task data: S (total path traversed by the given body) = 18 km; S1 (first section) = 10 km; t1 (time spent on the first section of the path) = 10 minutes (1/6 h); S2 (remaining distance) = 8 km; t2 (the time the body has spent on the remaining path) = 15 minutes (1/4 h).
We calculate the average body speed by the formula: V = S / t = S / (t1 + t2).
Calculation: V = 18 / (1/6 + 1/4) = 18 / 0.417 = 43.2 km / h.
Answer: The given body had to move at an average speed of 43.2 km / h.
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