The plane flies at a speed of 900 km / h. Is this plane supersonic? Take the speed of sound equal to 330 m / s.

univerkov | August 2, 2021 | education

To compare the speed of the aircraft (V1 = 900 km / h) and the speed of sound (V2 = 330 m / s), let us convert the speed of the aircraft to the system speed units in m / s in accordance with the SI system: V2 = 900 km / h ( 1 km = 1000 m, 1 h = 3600 s) = 900 * 1000/3600 = 250 m / s. Since 250 m / s (900 km / h) <330 m / s, the aircraft will not be able to overcome the sound barrier.
Answer: The plane is not supersonic.

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