Determine Speed of Plane Flying Horizontally

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SUMMARY

The discussion focuses on determining the speed of a plane flying horizontally when a sonic boom is heard. The key equations involved are the Mach number (Ma = 1/sin(θ)) and the relationship between height (h), time (t1), and speed (v). The solution simplifies to using the Pythagorean theorem, where the sides of the right triangle are defined by the height (h) and the horizontal distance (v*t1), with the hypotenuse being the speed of sound (c*t1). The conclusion emphasizes that angles are unnecessary for solving the problem.

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  • Understanding of basic trigonometry, specifically right triangles
  • Familiarity with the concept of Mach number in aerodynamics
  • Knowledge of the Pythagorean theorem
  • Basic physics principles regarding sound and motion
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Homework Statement


A plane traveling horizontally passes overhead at a height h at t=0. at time t=t1 a sonic boom i heard.

b.) Determine the speed of the Plane

Ma=1/sin(pheta)
pheta=arctan(h/x)

Ma=1/sin(arctan h/vt)


I think I've done it correct up to this point...
Do i have to find the sin of (arctan h/vt) which is h/vt/ SQRT(h^2-vt^2)... ? i don't know how to solve for V ... any help would be appreciated thank you


Homework Equations





The Attempt at a Solution

 
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You really don't need any angles. Draw the right triangle at time t1. The two sides are h and v*t1. If c is the speed of sound then the hypotenuse is c*t1. Use the pythagorean theorem and solve for v1. The problem is simpler than you think.
 

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