In the given figurethe wedge is fixed, pulley is frictionless and string is light. Surface AB is frictionless whereas AC is rough. If the block of mass 3m. Slides down. With conttant velocity, then the coefficient of friction between surface AC and the block is

The triangular block is moving on a frictionless surface with 3 m//s^2 towards right such that the mass m does not slide on the tiangular block.Find the coefficient of friction between mass m and the block. .

A rectangular block is kept on a rough horizontal surface and given some initial velocity. The coefficient of friction between the block and the surface is constant. The block will topple

Block A of mass M in the system shown in the figure slides down the incline at a constant speed. The coefficient of friction between block A and the surface is 1 3 3 . The mass of block B is-

Two blocks A and B are connected to each other by a string and a spring, the string passes over a frictionless pulley as shown in Block B slides over the horizontal surface of a stationary block C and the block. A slides along the vertical side of C, both with same uniform speed. The coefficient of friction between the surface of the blocks is 0.2 Force constant of the spring is 1960 N//m if the mass of block A is 2 kg calculate the mass of the block B and the energy stored in the spring.

A block of mass M is being pulled along rough horizontal surface. The coefficient of friction between the block & surface is mu . If another block of mass M/2 is placed on the block & it is again pulled on the surface. The coefficient of friction between the block and surface will be

Block A of mass m and block B of mass 2m are placed on a fixed triangular wedge by means of a light and inextensible string and a frictionless pulley as shown in fig . The wedge is inclined at 45^(@) to the horizontal on both sides . The coefficient of friction between the block A and the wedge is 2//3 and that between the block B and the wedge is 1//3 .If the system of A and B is released from rest then find . a. the acceleration of A b. tension in the string c.the magnitude and direction of the frictional force acting on A