A bullet is fi red upward with a speed from the edge of a cliff of height h (Fig. P3.22...

A bullet is fi red upward with a speed from the edge of a cliff of height h (Fig. P3.22). (a) What is the speed of the bullet when it passes by the cliff on its way down? (b) What is the speed of the bullet just before it strikes the ground? (c) If the bullet is instead fi red downward with the same initial speed what is its speed just before it strikes the ground? Express your answers in terms of h, and g. Ignore air drag. Assume the bullet is fi red straight up in (a) and (b) and straight down in (c).