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What is atmospheric drag?

What is the approximate magnitude of the drag force on an airplane (such as a commercial jet) traveling at 242?

  • What is the approximate magnitude of the drag force on an airplane (such as a commercial jet) traveling at 242 m/s through air with a density 1.1 kg/m3? Estimates What is a reasonable value for the cross sectional area of the airplane encountering the drag force? Calculations (use your estimates) The airplane experiences what drag force? (Please show all work and steps)

  • Answer:

    FD = (1/2)*ρ *v^2*CD*A then plug-and-chug FD is the force of drag, which is by definition the force component in the direction of the flow velocity, ρ is the mass density of the fluid, v is the velocity of the object relative to the fluid, A is the reference area, and CD is the drag coefficient — a dimensionless constant related to the object's geometry and taking into account both skin friction and form drag. http://en.wikipedia.org/wiki/Drag_equation

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