The motorcyclist covered a distance of 90 km in a time of 2 hours. How much is the average speed
| September 18, 2021 | education
The motorcyclist covered a distance of 90 km in a time of 2 hours. what is the average speed of a motorcyclist on all paths if for the next 3 hours he moved at a speed of 50 km / h.
Initial data: the first section of the motorcyclist’s movement (t1 = 2 h; S1 = 90 km); the second section of the movement (t2 = 3h; V2 = 50 km / h).
The average speed of a motorcyclist along the entire path of movement is determined by the formula: Vav. = (S1 + S2) / (t1 + t2) = (S1 + V2 * t2) / (t1 + t2).
Calculation: Vav. = (90 + 50 * 3) / (2 + 3) = 240/5 = 48 km / h.
Answer: The average speed of the motorcycle is 48 km / h over the entire travel path.
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