Round to the Nearest Tenth Unless Indicated Otherwise $50 \mathrm { mph }$

Multiple Choice

Round to the nearest tenth unless indicated otherwise.
-Wind resistance or atmospheric drag tends to slow down moving objects. Atmospheric drag varies jointly as an object's surface area A and velocity v. If a car traveling at a speed of $50 \mathrm { mph }$ with a surface area of $36 \mathrm { ft } ^ { 2 }$ experiences a drag of $270 \mathrm {~N}$ (Newtons) , how fast must a car with $35 \mathrm { ft } ^ { 2 }$ of surface area travel in order to experience a drag force of $231 \mathrm {~N}$ ?

A) $49 \mathrm { mph }$
B) $46 \mathrm { mph }$
C) $41 \mathrm { mph }$
D) $44 \mathrm { mph }$