A radio antenna mounted on top of a car has a diameter of 3.35 x 10^3 m and a 1.22 m long. Determine (a) the bending moment at the base of the antenna if the car is driven 60 mph on still air at 20 C and atmospheric pressure.. (b)  the power needed to overcome the aerodynamic drag of the antenna. Assume Cd = 1.3. and Rair 0.287 kPa / m^3 /kg . K

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Fluid Dynamics

The study of the flow of gases and liquids, usually in and around solid surfaces, is known as fluid dynamics in physics and engineering. Fluid dynamics, for example, can be used to evaluate the movement of air through an airplane wing or the surface of a vehicle. It can also be used in ship design to increase the speed at which ships pass through water.