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V =g [T cos (α+ αT)− D
W− cos γ ]
V = g [−DW
− sin γ ]
항력
V = g [−(
12
ρv2CDA )
W − sin γ ]
이므로
V = g [−
18
ρv2CD π d 2
W − sin γ ]
라 하면
L = IxP − (Iy − Iz )QR + Jyz(R2 − Q 2 ) − Jxz (PQ + R ) + Jxy (RP − Q)
M = IyQ − (Iz − Ix )RP + Jxz (P2 − R 2) − Jxy(QR + P) + Jyz (PQ − R)
N = IzR − (Ix − Iy)PQ + Jxy(Q2 − P 2) − Jyz (RP + Q) + Jxz (QR − P )
l = IxP − (Iy − Iz)QR
m = IyQ − (Iz − Ix)RP
n = IzR − (Ix − Iy)PQ