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Mach value64

  • Thread starter soulja101
  • Start date
  • #1
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Homework Statement


If the temperature is 12 degrees and a jet accelerates at rest at 12ms2 for 41s, then what is the Mach value for the jet at the end of 41 seconds


Homework Equations


mach#=vovs
speed of sound equation

The Attempt at a Solution



v=12degrees
a=12ms2
v=339,08ms
m#=vo/vs
 

Answers and Replies

  • #2
marcusl
Science Advisor
Gold Member
2,693
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Homework Statement


If the temperature is 12 degrees and a jet accelerates at rest at 12ms2 for 41s, then what is the Mach value for the jet at the end of 41 seconds


Homework Equations


mach#=vovs
speed of sound equation

The Attempt at a Solution



v=12degrees
a=12ms2
v=339,08ms
m#=vo/vs
Your statement of the problem has numerous flaws. I assume the jet accelerates from rest, and that you meant "t=12degrees" above. Careful also to use acceleration units of meters per second^2, not m-s^2. Finally your value for v is incorrect.

What is the equation giving velocity in terms of acceleration and time? Once you have that you'll need the speed of sound at 12 degrees to finish the problem...
 

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