Suppose the fench at left field is 5 feet high and 230 feet from home plate.Determine a new slope
velocity is 120 feet per second,so that the softball will clear the fench by just three foot.
formula= y= - 16（1＋s^2 ）*（x/v）^2＋sx＋4
s=slope
v=feet per second
y= height above the ground in feet
x= distance on the ground from home plate in feet
slope是多少
y＝-16 (1+s^2)*(233/120)^2 + 233s +4 把230换成233 然后y＝0 那么slope的两个直是多少。