# Finding speed of an object when it hits the ground, after free fall.

by austin944
Tags: fall, free, ground, hits, object, speed
 P: 45 Finding speed of an object when it hits the ground, after free fall. Actually, I was wrong you don't need time at all: $$v_f^2 = v_i^2 + 2ad$$ and, of course, vi will be 0.