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Unformatted text preview: Lab 105: Coefficient of Static F riction Group members : Mario DeLaPaz, Kennedy Tavarez, Bryan Ransinangue, Shayeesan Indran Phys 111A Kui Chen Objective To measure the coefficient of static friction between surface m, and to verify that this value is independent of the normal force N. To measure the force parallel to an inclined plane that will just cause a block to be on the verge of sliding. a) up, and b) down the plane, and to compare these measured values with values calculated from Newtons First Law. Theoretical Background The static friction force F, between two surfaces can assume any value between zero and a mazimum value F max , i.e 1.) 0<F s <F smax The friction force F e will equal the maximum value F smax when a body is on the verge of slipping. The relationship between F smax and the normal force V is 2.) F smax = N Where s is a constant, called the coefficient of static friction, that depends only on the nature of the two surfaces in contact with each other, and is independent of the normal...
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This note was uploaded on 04/28/2011 for the course PHYS 106 taught by Professor Opyt during the Spring '08 term at NJIT.
- Spring '08