[RSchorr]

I have been running the force, momentum acceleration equations and having to guess on the time duration for computing deceleration. I was going to state that my initial calculations led me to expect a force of 50 or 60 lbs rather than the 25 lbs you started with. However, your statement about the 2X4 splitting along to grain makes me wonder what you were getting as a force (force of impact).

Any thoughts on this?