Answer:
Speed of air = 1106.38 ft/s
Explanation:
Speed of sound in air with temperature
[tex]v_{air}=331.3\sqrt{1+\frac{T}{273.15}} \\ [/tex]
Here speed is in m/s and T is in celcius scale.
T = 50°F
[tex]T=(50-32)\times \frac{5}{9}=10^0C \\ [/tex]
Substituting
[tex]v_{air}=331.3\sqrt{1+\frac{10}{273.15}}=
337.31m/s \\ [/tex]
Now we need to convert m/s in to ft/s.
1 m = 3.28 ft
Substituting
[tex]v_{air}=337.31\times 3.28=1106.38ft/s \\ [/tex]
Speed of air = 1106.38 ft/s
