Knightrider... You have a lovely child, and you have a lot of years left to live. No one on here should be insulting... we don't want you (or anyone) to do things in a way that could be done safer. Here's a quick brainstorm I had.
Everyone, Please take all this in the spirit it is offered: A spirit of learning, and of fun and grins too (because learning should be fun!)
A Farmer's Lesson on momentum (I'm serious here.)
Needed: one 4x4 x 8foot post, majic marker, yardstick, one baseball bat, one pillow, protective eyewear and maybe clothing (as you determine).
Procedure:
Experiment 1: Stand post on end. Mark it 3 feet off ground. This is our tree. Put pillow on ground next to it... this is the tractor with driver on it (feel free to use old GI Joe, or whatever; Not Required

). At exactly 3 feet up from ground, whack the post with the bat in a direction inline with the pillow (you are simulating a fast hit with the tractor, bat should travel right over pillow). Notice results. :thumbsup:
Experiment 2: Stand post back up. This time, press post as slowly as possible with the bat, at the 3-foot mark (like you were nudging a water balloon and don't want it to pop). Notice results. :thumbsup:
Experiments 3 & 4: Cut post in half (two 4-foot sections). (Simulates a VERY weak tree). Stack them end on end (so it's 8 feet high again). Now repeat actions from experiments 1 & 2)
Experiments 5 & 6: Same as 3 & 4, but this time tape the sections together with one wrapping of duct tape. Just one wrapping. Simulates a weak tree but one that is holding together vertically. Repeat actions.
You can likely
imagine a lot of the results without actually doing this. The pillow is not in a safe place.
The law of momentum is also at work here. Remember, that law has two parts:
A body in motion (tractor) tends to stay in motion. And, a body at rest (heavy treetop) tends to stay at rest (not move horizontally, but will drop vertically when gravity is pulling it, and there is no base to hold it up).
Merry Christmas to all!!!!