What are facts about the bow and arrow?

Back in the 1950's there was a TV program called, "You Asked For It." A program in which a person could write in with a question, and these fellas would try to answer it for the individual on television.

So a young man wrote in, "what was more powerful, penetrating wise; an arrow or a bullet?

The men at "You Asked For It", tied a sand bag (a bag full of sand) to a tree limb and fired an arrow at it. The arrow went thru and kept on going. Then they fired a pistol bullet into the suspended sand bag; the bullet stopped inside the bag; and they recovered the bullet and showed a close up for the viewers watching the show.

Naturally of course, these ballistic type tests will always have different outcomes, based upon the make-up, type of metal, shape of bullet, speed of bullet, distance (range) from target, etc. etc. But generally (w/o getting into the particulars) an arrow penetrates and a bullet expands (even a full metal jacketed bullet will mushroom) thus stopping inside the impact area.