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You can chew through very tough objects with your incisors because they exert a large force on the small area of a pointed tooth. What pressure in pascals can you create by exerting a force of $500 \textrm{ N}$ with your tooth on an area of $1.00 \textrm{ mm}^2$?
Question by OpenStax is licensed under CC BY 4.0.
Final Answer

$5.00 \times 10^8 \textrm{ Pa}$

Solution Video

OpenStax College Physics Solution, Chapter 11, Problem 69 (Problems & Exercises) (0:24)

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Video Transcript

This is College Physic Answers with Shaun Dychko. When exerting a force of 500 Newtons with a tooth that has an area of one square millimeter, the pressure will be the force divided by the area. So that's 500 Newtons divided by one millimeter squared times one meter for every 1000 millimeters, and we square that conversion factor. We end up with 5.00 times ten to the eight Pascals is the pressure.