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Momentum


pavelow

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Veritasium, a channel on YouTube, posted a series of videos showing an experiment where a bullets are shot into blocks, where one time, the bullet is shot into the center of the block, while another time, the bullet is shot off-center.

The first video can be watched here:

And the second here:

The explanation for the result of the experiment has to do with momentum. While the second block has more energy, it has the same momentum as before, because linear and angular momentum are independent of one another. Because kinetic energy is not conserved in inelastic collisions, the systems can have different kinetic energies while maintaining the same momentum.

Explanation video here:

Also, shameless plug for his channel. Subscribe.

the video was made with help from RIT.

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