Kamis, 06 Maret 2014

Bicycle Helmet Laws?????????????




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Are bicycle helmets required in the state of Florida.


Answer
The most universal "bicycle helmet law" is the law of physics!

Even if it is not required by law, wearing a helmet while biking is a dang good idea! Have you ever seen what happens to the human head when it hits the pavement at 30 MPH or more? How about when the human head hits a car with an impact speed of 60 MPH?

It ain't pretty!

If what's in your head isn't worth the price of a helmet in your opinion ... go without one! If you value what's in your head (your brain), wear a helmet.

physics of bicycle helmet!?




learnermin


am doing a lesson on Energy and Momentum and I am asked to write a report that includes sample calculations and examples, a thorough discussion of the principles of physics pertaining to energy and momentum, and apropriate diagrams and notations to demonstrate my understanding between the design and use of the helmet.

I am looking up google for information, and having some difficult time finding the right information, I appreciate if I could get some recommended links. I think they are asking me to demonstrate how kinetic energy is converted to potential energy during a crash but not quite sure how momentum is used (any help is appreciated) in the physics of helmets.



Answer
In a bicycle helmet, most of the kinetic energy of the impact is not usually stored as potential energy to be released later but is dissipated as heat. The helmet must also slow down the suddenness of the impact and spread them out over time and area so that the body structures can absorb them safely without high peak values of force or pressure.




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Title Post: Bicycle Helmet Laws?????????????
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