Coefficient of friction between pulley and light string is `mu_(1)`. Calculate minimum coefficient of friction between block `A` and ground such that system can be in equibrium.

Two blocks A and B are lying on the table as shown in the figure. The coefficient of friciton between block A and block B is mu . The coefficient of friction between block B and ground also mu . An external force F is applied in the direction shown. The maximum value of the force F that can be applied without moving the blocks.

Two blocks A and B are lying on the table as shown in the figure. The coefficient of friciton between block A and block B is mu . The coefficient of friction between block B and ground also mu . An external force F is applied in the direction shown. The maximum value of the force F that can be applied without moving the blocks.

Calculate angle of friction between wedge and block system is at rest M coefficient of friction between wedge and block.

Calculate angle of friction between wedge and block system is at rest M coefficient of friction between wedge and block.

Block B of mass m_(B) = 0.5 kg rests on block A, with mass m_(A) = 1.5kg which in turn is on a horizontal tabletop (as shown in figure) .The coefficient of kinetic friction between block A and the tabletop is mu_(k) = 0.4 and the coefficient of static friction between block A and blockB is mu_(s) = 0.6 A light string attached block A passes over a frictionless, massless pulley and block C is suspeneded from the other end of the string. What is the largest mass m_(c) (in kg) that block C can have so that block A and B still slide together when the system is relaced from rest?

Block B of mass m_(B) = 0.5 kg rests on block A, with mass m_(A) = 1.5kg which in turn is on a horizontal tabletop (as shown in figure) .The coefficient of kinetic friction between block A and the tabletop is mu_(k) = 0.4 and the coefficient of static friction between block A and blockB is mu_(s) = 0.6 A light string attached block A passes over a frictionless, massless pulley and block C is suspeneded from the other end of the string. What is the largest mass m_(c) (in kg) that block C can have so that block A and B still slide together when the system is relaced from rest?

A spherical ball is placed between a vertical wall and a movable inclined plane as shown. There is no friction between the wall and the ball, and no friction between the ball and the inclined plane. The coefficient of friction between the inclined plane and the ground is The system is in equilibrium. The minimum value of mu is :

A block of mass m_(2) is placed on a horizontal table and another block of mass m_(1) is placed on top is it. An increasing horizontal force F = alpha t is exerted on the upper block but the lowwer block never moves as a result. If the coefficient of friction between the blocks is mu_(1) coefficient of friction between the blocks is mu_(1) and that between the lower block and the table is mu_(2), then what is the maximum possible value of mu_(1)//mu_(2) ?