We have that the time the dive lasted was
[tex]T=0.076771 hours[/tex]
From the Question we are told that
Fall distance 19.5 miles
Velocity v= 254 mi/hr
Generally the equation for the Time is mathematically given as
[tex]T=\frac{v}{d}\\\\T=\frac{19.5}{254}[/tex]
[tex]T=0.076771 hours[/tex]
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