friction and terminal velocity of a parachutist vs a car

[raaaid]

if i ever employ anybody for anything ill make sure to discard anyone with university studies

"Every ‘complete’ course in basic physics treats Coulomb’s famous inverse square law of electrostatic force. Few courses, however, associate his name with the law of sliding friction, also treated. Perhaps influenced by the work of Leonardo DaVinci, Coulomb provided in 1779 a treatment of sliding friction that has stood the test of time.

His law is expressed in terms of two constant coefficients, one being of kinetic type, the other static, with the latter being larger than the former. Surprising to most, the magnitude of the force of friction between two surfaces is to first order independent of both speed and the area of contact—depending only on the normal force N between the surfaces."

ALL SCIENCE IS PROMOTED BY PETROCHEMICAL COMPANIES TO CONFUSE INVLEIGE AND OBFUSCATE, THE MORE YOU STUDY THE MORE STUPID YOU BECOME

edit:

ill have to point it to you dont i:

it produces the same friction 1 square cm than 1 square m if the weight its the same, that is the normal force

if people believes this bs probably theres a guy working for the government thinking hey what news will we make up today, funny, terrorific, peismistic,optimistic....

[JG52Krupi]

Wow seriously but hurt aren't you raaaid, how many times did you fail to get a degree?

[Outlaw]

Originally Posted by raaaid

it produces the same friction 1 square cm than 1 square m if the weight its the same, that is the normal force

if people believes this bs probably theres a guy working for the government thinking hey what news will we make up today, funny, terrorific, peismistic,optimistic....

As I pointed out earlier, all good and/or real text books will note the limitations and assumptions of idealized rolling and sliding friction. So only stupid people will "believe" that contact area has zero effect on the friction force. The same could be said about people who believe that intelligent people are the aforementioned believers.


--Outlaw.