Ok. Read that highlighted part again. Was Rudy throwing this against glass and wood or hardened steel?
Sometimes posts like this just make my day, because lurkers will read it and see it for what it is.
well if i'm exposed for a fool i'm exposed for a fool. I have never understood gravity very well , many people think of it as a simple concept but it is much more complicated as I understand it.
I did make a partial mistake in claiming the weight of the rock pulls it down, which IS true, but the larger mass of the rock also makes it more resitant to being accelerated by the gravity, much like a larger truck resists accerleration more than a lighter truck with the same engine. so this is why a rock that weighs more and a rock that weighs less end up landing on the ground at the same time b/c their respective weight and mass negate each other. for the lighter ball there is less gravitational force pulling on it but it's easier to accelerate b/c it's lighter. I can now thank Amanda Knox's decision to butcher her roommate for my understanding of this principle that apparently did not understand before. hey, there's a silver lining in everything, even a heinous murder.
however, I think people missed my point b/c I wasn't suggesting a lighter rock and a heavier rock don't land on the ground at the same time, but rather they have different trajectories while they are in the air with the heavier rock dropping down sooner as it moves across a span of x distance. is this not correct? maybe it's simply b/c the larger rock isn't thrown at the same velocity as the lighter rock b/c it's heavier but does this free body motion principle apply even for rocks thrown at different velocities or must it be the same velocity? I would think the same velocity b/c that is the scenario in the one where the two rocks of different weights are simply released from a high point and no velocity is imparted on them at all.
Last edited: