Abstract: This paper establishes a locus equation of the shot according to kinematicalprinciples. By using differential and integral calculus and trigonometric function, wehave found the extreme valve of the angles of delivery and the best flying distances,with the falling poinis of shot considered. Thus a simple expression showing therelationships among the best angle delivery, the best.flying distance, the height ofdelivery point and its initial velocity. can be attained and a diagram can be made bycalculating, showing the best angle of delivery. and the best flying distance.

Key words: influence line method, analytical method, finite element method, microcirculatory dynamics