HEY MAN, i think i finally got it:
first equation - nb of machs :
machs = velocity of plane / velocity of sound
second - distance ratio:
tan(angle) = x/900
third:
velocity of plane / velocity of sound = 1/sin(angle)
fourth:
x = velocity of plane * 2.2 secondes
x is...
I mentionned in my post, c is the velocity of sound, in this problem we use c = 331.4
Plane is at 900 meters above my head and i hear the sound after 2.2 seconds, that's all i got.
nah we've been threw this section so fast, only thing i have is
vs = c / sin(angle)
and
machs = vs/c = 1 / sin(angle)where vs is velocity of thing moving, c is velocity of sound
1. Homework Statement
A plane passes from 900 meters over my head. I hear the shockwave after 2.2 seconds. At what speed in Mach is the plane flying ? Speed of sound = 331. 4 m/s
2. Homework Equations
Machs = speed of plane / speed of sound
3. The Attempt at a Solution
I don't...
Homework Statement
A plane passes from 900 meters over my head. I hear the shockwave after 2.2 seconds. At what speed in Mach is the plane flying ? Speed of sound = 331. 4 m/s
Homework Equations
Machs = speed of plane / speed of sound
The Attempt at a Solution
I don't have any clue where...