They shall be known as Bush's Laws of Motion

[OnTheOtherHand]

36. if one can trust Legge, then Greening made a good point poorly

Chandler had said, "Moving downward without deceleration while crushing columns designed to support several times the weight...now that's a problem" -- and Legge adds a bracketed gloss that "it would violate Newton's third law."

But it doesn't violate Newton's third law. As several of us have tried to explain, the acceleration of the falling mass will remain positive upon collision unless the reaction force of collision actually equals or exceeds the gravitational force upon the falling mass.

Greening could have said something like this: In high school physics classes, collisions between a moving object and a stationary object almost always cause the moving object to slow down -- because, generally, no other force is accelerating the moving object. (If it's a billiard ball, then gravity is trying to accelerate it right through the table, but the table is pushing back.) But if the object is falling, then the gravitational force does have to be taken into account. Newton's Third Law still applies to the collision, but contrary to Truth Physics, it doesn't dictate that a falling object has to decelerate when it collides with something.