Calculating Mach Number of Aircraft at Sea Level

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Homework Help Overview

The discussion revolves around calculating the Mach number of an aircraft flying at sea level under specific conditions. The original poster presents two speeds and their corresponding Mach numbers, expressing confusion over the calculations.

Discussion Character

  • Mathematical reasoning, Assumption checking

Approaches and Questions Raised

  • Participants discuss the formula for Mach number and question the values used for the speed of sound. There is an attempt to clarify the correct speed of sound at sea level.

Discussion Status

Some participants have provided insights regarding the speed of sound, and there is an ongoing exploration of the calculations involved. The discussion is active, with participants seeking to clarify assumptions and values used in the problem.

Contextual Notes

There is a mention of specific conditions such as temperature and altitude affecting the speed of sound, which may not have been fully addressed in the original problem statement.

soulja101
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Homework Statement


What is the mach number if an aircraft traveling at sea level at 0 degrees with a speed of A)1140km/h b)900.0km/ the answers are 0.995 abd 0.753 in order. I Cant get those.


Homework Equations


mach number=speed of object/speed of sound


The Attempt at a Solution



322meters per second/316meters per second

1.02meters per second and i got a different number than the answer for number 2
 
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for the first it should be: [tex]\frac{316. 6 \frac{m}{s}}{ 340.29 \frac{m}{s}}[/tex]
 
where did u get 340 from
 
thats the speed of sound at sea level.
 

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