The physics of stuff getting hit
Tony Smith email (remove spam text)
> I don't think so.
> I rather get hit with a 5 kg pillow travelling at 40 mph,
> than a 100 gram golf ball moving at 30 mph, even though the
> former has far more momentum.
> I think you've to take into account:
> * Momentum
> * Hardness
> * Surface are of impact
NASA used to think like that. Maybe they still do.
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