Question 806717
s(t)=-16t^2+56t+50
parabola
focus | (7/4, 6335/64)=(1.75, 98.9844)
vertex | (7/4, 99)~~(1.75, 99)
semi-axis length | 1/64 = 0.015625
focal parameter | 1/32 = 0.03125
eccentricity | 1
directrix | s = 6337/64
vertex is the high point
98.9844 ft at 1.75  seconds