Finding the coefficient of rolling friction (CRF) by the inclined plane method is similar to the manner used in establishing the coefficient of sliding friction. For the rolling case, the difficulty arises from the fact that the usual devices employed in angular measurements present errors greater than the effective angle. The paper surmounts...

By Alaci Stelian, Ilie Musca, Cristian Barz, Cristian Barz, Sorinel Toderas Siretean, Florina–Carmen Ciornei

 In order to model natural phenomena, a faithful model describing the evolution of the analyzed phenomena must consider as many aspects as possible. An advantage of a correct representation of the studied phenomenon is the highlighting of the aspects hard to notice initially. To support these affirmations, two examples are brought into attenti...

By Ciornei Florina-Carmen, Cristian Barz, Stelian Alaci, Ionut-Cristian Romanu, Bogdan-Ion Dragoi