Experiment gone wrong: Pedulum (and how it should be done!)

Perhaps the teacher should have stressed out that one should never lean forward in this experiment? Or perhaps he should have put her with the back against the wall?

It’s a tricky experiment as can be seen from the next video where even experienced teachers struggle not to get a bashing. 3rd video demonstrates how the experiment should be done with a fixed background and the last is the experiment by the master himself…

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Posted in conservation of energy, Transfer of energy: Implus

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