The speed of sound

Classical Mechanics Level 2

The speed of sound moves at approximately 330m/s through air.

Now, if for some reason, air started moving at 330m/s, what would be the speed of sound?

( Assumptions: the sound is travelling in the same direction as the air )

330m/s 485m/s 660m/s 0m/s

Ali Abbas by Ali Abbas , 19, United Kingdom

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2 solutions

Laszlo Mihaly
Feb 11, 2018

Yuo should specify in the problem that the air moves in the same direction as the sound. Othrwise all of the listed answer May be correct.

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adjusted to cover for the noted problem

Ali Abbas - 3 years, 3 months ago
Ali Abbas
Feb 11, 2018

As the medium that sound travels through is travelling faster, sound would permeate relative to that speed, so the answer would be v s o u n d + v m e d i u m − s p e e d v_{sound}+v_{medium-speed} , or 660m/s .

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