Revisit Example 3-9, and assume that the boy with the slingshot is below the boy in the tree (Fig…

Revisit Example 3-9, and assume that the
boy with the slingshot is below the boy in the tree (Fig. 3-45) and so aims
upward, directly at the boy in the tree. Show that again the boy in the tree makes
the wrong move by letting go at the moment the water balloon is shot.