The tram passed the first 50 m at a speed of 4 m / s, and the next 450 m at a speed of 6 m / s
| July 25, 2021 | education
The tram passed the first 50 m at a speed of 4 m / s, and the next 450 m at a speed of 6 m / s, determine the average speed of the tram.
To calculate the value of the desired average speed of the tram under consideration, we apply the formula: Vav = (S1 + S2) / (t1 + t2) = (S1 + S2) / (S1 / V1 + S2 / V2).
Variables: S1 – the first part of the tram track (S1 = 50 m); V1 – initial speed (V1 = 4 m / s); S2 – the second part of the tram track (S2 = 450 m); V2 – final speed (V2 = 6 m / s).
Calculation: Vav = (50 + 450) / (50/4 + 450/6) = 500 / 87.5 = 5.714 m / s.
Answer: The average speed of the tram in question was 5.714 m / s.
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