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posted by  Cloie on 9/16/2007 12:12:41 PM  |  status: Live  

Physics prob 61 chapter 17

Course Textbook Chapter Problem
Calculus Based Physics Physics for Scientists and Engineers (6th) by Serway, Jewett 17 61AP
Question Details:
A supersonic aircraft is flying parallel to the ground. When the aircraft is directly overhead, an observer sees a rocket fired from the aircraft. Ten seconds later the observer hears the sonic boom, followed 2.80 s later by the sound of the rocket engine. What is the Mach number of the aircraft?

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posted by doooooo on 9/16/2007 12:48:23 PM  |  status: Live
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Cloie's comment:
"cosß=(1/.28) does not give a ß=38.6, so how was that calculation done? Also, what does Nm stand for?"
Response Details:

 

sinβ= =
h= v(2.80 s)
x= vs (10.0 s)
tanβ= =0.28 s =
cosβ=
β=38.6 degrees
NM=

 
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