Question

What is Sound barrier?
What is its limit?
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Answer 1

Answer:

Sound barrier, sharp rise in aerodynamic drag that occurs as an aircraft approaches the speed of sound and that was formerly an obstacle to supersonic flight. If an aircraft flies at somewhat less than sonic speed, the pressure waves (sound waves) it creates outspeed their sources and spread out ahead of it.

U.S. Navy For an airplane to break the sound barrier, it must hit speeds of about 770 mph — when it does that a couple of things happen

Answer 2

Sound barrier, sharp rise in aerodynamic drag that occurs as an aircraft approaches the speed of sound and that was formerly an obstacle to supersonic flight. If an aircraft flies at somewhat less than sonic speed, the pressure waves (sound waves) it creates outspeed their sources and spread out ahead of it.

explanation:- about 770 mph

U.S. Navy For an airplane to break the sound barrier, it must hit speeds of about 770 mph — when it does that a couple of things happen.