What is the average speed of the bus for the entire travel time, if it covered the first 4 km
| February 17, 2021 | education
What is the average speed of the bus for the entire travel time, if it covered the first 4 km of the route in 5 minutes, and the remaining 10 km in 10 minutes?
To calculate the value of the average speed of the specified bus for the entire time of travel, you must use the formula: Vav = (S1 + S2) / (t1 + t2).
Variables: S1 – first part of the route (S1 = 4 km); t1 – the first time (t1 = 5 min = 1/12 h); S2 – the second part of the path (S2 = 10 km); t2 – second time (t2 = 10 min = 1/6 h).
Calculation: Vav = (S1 + S2) / (t1 + t2) = (4 + 10) / (1/12 + 1/6) = 56 km / h.
Answer: The average speed of this bus was 56 km / h.
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