Block A of Figure 4 weighs 60.0 N. The static friction coefficient between the b

Question

Block A of Figure 4 weighs 60.0 N. The static friction coefficient between the block and the surface where it rests is 0.25. The weight w is 12.0 N and the system is in equilibrium. Calculate the frictional force exerted on Block A. b) Determine the maximum weight w with which the system will remain in equilibrium. Figure 3 a) El bloque A de la figure 4 pesa 60.0 N. El coeficiente dc friccion estatica entre el bloque y la superficie donde descansa es de 0.25. El peso w es de 12.0 N y el sistema esta en equilibrio. Calcule la fuerza dc friccion ejercida sobre el bloque A. b) Determine el peso miximo w con el cual el sistema permanecera en equilibrio.

Explanation / Answer

a) Here, Frictional Force acting on block A = Tension in string connected to block A

                                                                        = weight of w

                                                                          = 12 N

b)    maximum weight w for system in equilibrium = 0.25 * 60

                                                                                 = 15 N

                                            

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