Answer: [tex]4840\ ft/min[/tex]
Step-by-step explanation:
Given
Speed is [tex]v=55\ mi/h[/tex]
Also, 1 mile is equal to 5280 ft
1 hour is equal to 60 min
Substitutes this values
[tex]\Rightarrow 55\times \dfrac{5280}{60}\\\\\Rightarrow 55\times 88\\\Rightarrow 4840\ ft/min[/tex]