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I have likewise limited ability to do technically precise experiments... I likewise don't want to expend the effort if in the end you will just claim some loophole.
Effectively the same experiment was done with two conflicting results.
Clearly you don't understand what the video shows.
On the other hand, I am willing to let there be a thread about an experimental construction to test the standard kinetic energy equation (as long as it doesn't become a repeat of the first thread). I think that has the potential to be instructive to other viewers, and as such it gets my seal of approval. Do any of the other moderators object to that?
Please post the times at which the contradictory results are obtained.
At about 3:15 you says it's a complete contradiction because the momentum doesn't change.But momentum is a conserved property. We wouldn't expect it to change.What point did you think you were making?
At best, you seem to have shown that your experimental error trying to judge distances per frame in a video is worse the the electronic timers in the other video.
Clearly you don't understand what the video shows.One of of us doesn't; and I say it shows what the guy who made it says that it shows.
NASA pages that mentioned kinetic energy as 1/2*mv^2, tried to show him how harmonic oscillators work
mods...In fairness you should require Maxxy to make post relevant to the subject