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Home Q & A Board Science-Related Homework Help Physics
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obama obama
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12 years ago
a force, a momentum, a pressure,...what exactly can you quantify it as?
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#1
Educator
12 years ago
... a force
obama Author
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#2
12 years ago
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.
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#3
12 years ago
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.
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lgarrisonlgarrison
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#4
12 years ago
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