Ok, I have just followed the past few pages of physics "lessons" by Vixen, and I need some clarification. She has claimed that she is a member of MENSA, correct? While her specialty is more in the direction of economics, not physics, she should still have some grasp of numbers and simple Newtonian physics, right. She has also claimed to have graduated with honors from some prestigious London college, right?
I ask, because I have worked with kids in some pretty rough neighborhoods here in Los Angeles, who could easily calculate the basic velocity, inertia, kinetic energy and even graph out the basic path of travel of this rock, using the high school physics they learned in their junior year. They would have made assumptions of neglecting air resistance, and would have assumed uniform force in the throwing arm, but they could have come up with some pretty good estimates.
I bring this up, because given the tremendous level of ignorance shown by this Vixen poster, why does anyone on this board giver her the time of day? If this is an example of her ability to reason, then why would anyone take any of her analysis seriously.