Question

(a) What is a Mach number? (b) If a vehicle is labeled Mach 12, what does...

(a) What is a Mach number?

(b) If a vehicle is labeled Mach 12, what does it mean?

(c) What does breaking the sound barrier mean?

(d) Who was the first person to break the sound barrier?

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Answer #1

Ansa}  it is the the ratio of the speed of a body to the speed of sound in the surrounding medium.

Ans b} it means the speed of vehicle is 12 times the speed of sound in the medium in which the vehicle is travelling

Ans c} when the speed of the object just exceeds the speed of sound in that medium then the object is said to have broken the sound barrier.

Ans d}Charles Elwood Yeager is a former United States Air Force officer, was the first person who broke the sound barrier

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