The lifting parameter W/ given Fig. 1.23 in units of lb/ft2 . Frequently, the analogous parameter m= is used, when m is the vehicle mass; the units of m=CDS are usually given in kg/ . Derive the appropriate conversion between these two sets of units, that is, what number must W= expressed in lb/ft2 be multiplied by to obtain m= in kg/ ? (Comment: Even at the graduate level, it is useful now and then to go through this type of exercise.)
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