Three blocks $A,B$ and $C,$ of masses$4kg,2kg$ and $1kg$ respectively are in contact on a friction less surface, as shown .if a force of $14N$ is applied on the $4kg$ blocks, then the contact force between A and B is

Q.

Three blocks A, B and C of masses 4kg, 2kg and 1kg respectively, are in contact on a frictionless surface, as shown. If a force of 14 N is applied on the 4kg block, then the contact force between A and B is :

Q. Three blocks of masses $4kg,2kg,1kg$ respectively are in contact on a frictionless table as show in the figure. If a force of $14N$ is applied on the $4kg$ block, the contact force between the $4kg$ and the $2kg$ block will be:

Q. Three blocks of mass $1kg,4kg$ and $2kg$ are placed on a smooth horizontal plane as shown in figure. Find the normal force between $1kg$ block and $4kg$ block.

Q. Two blocks of mass $4kg$ and $2kg$ are placed side by side on a smooth horizontal surface as shown in the figure. A horizontal force of $20N$ is applied on $4kg$ block. Find the acceleration of each block.

Q. Two blocks of masses $2kg$ and $4kg$ are connected by a light string and kept on horizontal surface. A force of $16N$ is acted on 4kg block horizontally as shown in figure. Besides it is given that coefficient of friction between 4~kg and ground is 0.3 and between $2kg$ block and ground is 0.6. Then frictional force between $2kg$ block and ground is