A super craft was noted to have a wing area of 28.9 m2, it reads

Question

anonymous · Answer

With a weight of 10,000 lbs (=4535.92 kg) the stall speeds are:

flaps 0%: 94 kts
flaps 100%: 75kts

These stall speeds are given in equivalent air speeds (EAS)

For the Space Craft, in horizontal flight with a constant speed, the drag coefficient can be calculated with the following equation (parabolic lift-drag polar) $$C_D=0.0275 + 0.0456 C_L^2$$

1. Derive the formula $\rho(h)$ to calculate the density for a given geopotential altitude h in the troposphere (h<11 km).

do i use hydrostatic equation? $dp=-\rho g dh$