Judy, by chance, spots a potted plant falling outside the window at 3.14 m/s.Further down the same building, Judy’s boyfriend
clocks the pot at 53 m/s.How far apart are the friends? The acceleration of gravity is 9.8m/s2.
d = (V^2-Vo^2)/2g
d = (53^2-3.14^2)/19.6 = 143 m.