| X1 = (αM′U′ + ξ) cos Rt − αM′U − ξ − βM′V′ sin Rt =(α − β)M′Q sin (θ − Rt) sin Rt − ξ ver Rt |
(3)
| Y1 = (αM′U′ + ξ) sin Rt + βM′V′ cos Rt − βM′V = (α − β) M′Q cos (θ − Rt) sin Rt + ξ sin RT, |
(4)
| N1 = [ −(αM′U′ + ξ) sin (θ − Rt) + βM′V′ cos (θ − Rt) ] OO′ = [ −(α − β) M′Q cos (θ − Rt) sin (θ − Rt) − ξ sin (θ − Rt) ] Qt. |
(5)
The components of force, X, Y, and N, acting on the liquid at O, and reacting on the body, are then
X = lt. X1/t = (α − β) M′QR sin θ = (α − β) M′VR,
(6)
Y = lt. Y1/t = (α − β) M′QR cos θ + ξR = (α − β) M′UR + ξR,