Brachistrochrone Curve

Describes the most efficient path of trajectory for an
object with an even ballistic coefficient drag force
travelling in a parabolic arch.

This object however must be travelling at any fraction
of gravity's constant speed (9.8 metres per second per second).

'Kim Jong Un's intercontinental ballistic missiles have an uneven
ballistic coefficient, so this must be compensated with the

brachistrochrone curve for best results.'