Question 1
The force, F, acting on the wings of an aircraft moving through the air of velocity, v, and density, is given by the equation where, is a dimensionless constant and A is the surface area of the wings of the aircraft. Use dimensional analysis to determine the values of and.
Observation
Most candidates provided incorrect first steps for the solution by making the wrong substitution of dimension units of velocity, density and area.
EXPECTED RESPONSES:
Determination of values of x,y and z
For M; y = 1
T; x = 2
For L; = 1
= 1
z = 1