C2 = Wk2² + W´k´² = (W + W´[epsilon])k2², (3)

in which we have put k´² = [epsilon]k², where [epsilon] is a numerical

factor depending on the shape.

If the shot is spinning about its axis with angular velocity p, and is

preceding steadily at a rate [mu] about a line parallel to the

resultant momentum F at an angle [theta], the velocity of the vector

of angular momentum, as in the case of a top, is

Encyclopaedia Britannica, 11th Edition, "Hydromechanics" to "Ichnography" Volume 14, Slice 2 · 第 77 / 120 题