A massless beam of langth 5 m is placed on two wedges A and B. If three forces 3 kN, 4 kN and 5 kN are applied on the beam as shown in the figure, then find normal reaction at A and B.

Block A is placed over the block B as shown in figure. Wedge is smooth and fixed. Force of friction on block A is:

Two block of mass 5 kg and 10 kg respectively are connected by a massless string as shown in the figure. The whole system is kept on a frictionless surface. A force of 50 N is applied horizontally as shown in the figure. The tension T in the string will be

Three identical cubes each of mass m are place on a smooth horizontal surface.A constant force F is applied on A as shown in the figure.The force on B applied by C is

Two blocks 'A' and 'B' each of mass 'm' are placed on a smooth horizontal surface . Two horizontal force F and 2F are applied on the blocks A and B , respectively , as shown in figure . The block A does not slide on block B . The normal reaction acting between the two blocks is

A wedge of mass M lies on a smooth fixed wedge of inclination theta . A particle of mass m lies on the wedge of mass M in the figure. All surfaces are frictionless and the distance of the block from the fixed wedge is l . Find. (a) Normal reaction between m and M (b) the time after which the particle will hit the fixed plane.

Two blocks of masses m and 2m are placed on a smooth horizontal surface as shown in the figure. Find the acceleration of each block and normal reaction between two blocks if a horizontal force F_(0) is applied on (a) m and (b) 2m