The tension in the string which connected the blocks as shown in the following figure  ............ $ N$

In the given arrangement all surfaces are smooth. What acceleration should be given to the system, for which the block $m_2$ doesn't slide down?

Three blocks are connected as shown in figure on a horizontal frictionless table. If $m_1 =  1kg, m_2 = 8kg, m_3 = 27\, kg$ and $T_3 = 36N, T_2$ will be ............ $N$

Two blocks of mass $8\,kg$ and $2\,kg$ are connected by a string and they are released on  a inclined plane of inclination $30^o$ as shown in figure then what will be the tension  in string connecting the two blocks  ............ $N$

A block of mass $M$ is pulled along a horizontal frictionless surface by a rope of mass $m$. If a force $P$ is applied at the free end of the rope, the force exerted by the rope on the block will be

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