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Science-Related Homework Help Physics Topic started by: obama on Jun 14, 2011



Title: when someone hits you, what do you feel?
Post by: obama on Jun 14, 2011
a force, a momentum, a pressure,...what exactly can you quantify it as?


Title: Re: when someone hits you, what do you feel?
Post by: bio_man on Jun 14, 2011
... a force


Title: Re: when someone hits you, what do you feel?
Post by: obama on Jun 14, 2011
why none of the other ones?

a small push of a pin creates a ton of pain on the skin compared to the same push using a finger.


Title: Re: when someone hits you, what do you feel?
Post by: korkoliotis on Jun 15, 2011
It might be useful to quantify a 'small push' of a pin-and keep in mind that the surface area of a pin is much smaller than a finger so the force has been more or less 'concentrated' to a very comparatively tiny area. If you push hard enough with a finger, it will eventually hurt as well but if you spread that same amount of finger hurting force over a larger area the pain will be reduced again. Pascal might have liked this discussion.


Title: Re: when someone hits you, what do you feel?
Post by: lgarrison on Jun 26, 2011
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