The plane takes off at a speed of 216 km / h. With what acceleration should it move along a 1.2 km runway?
| July 22, 2021 | education
Task data: V (the speed at which the aircraft takes off) = 216 km / h (60 m / s); L (runway length, distance traveled by the aircraft) = 1.2 km (1200 m / s); V0 (initial airplane speed) = 0 m / s.
The acceleration with which the aircraft should move along the runway is determined from the formula: S = (V ^ 2 – V0 ^ 2) / 2a = V ^ 2 / 2a, whence a = V ^ 2 / 2S.
Calculation: a = 60 ^ 2 / (2 * 1200) = 1.5 m / s2.
Answer: The plane must move along the runway with an acceleration of 1.5 m / s2.
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