The fish are caught the tag numbers are reported

D) display all caught fish

S) search for a specific fish

Means

Fish #12333, wt 1.2 kilogram, caught nov13th, 2014 at location D

G=-9.33 m/s^2

Vycurr = Vyinit + g*time

sy = Vycurr *t + 0.5*G*time*time

Shoot the cannon then display, sx, sy, and Vcurr every 1/10th second until it hits the ground when sy = 0.0.