A horizontal force $10 \mathrm{~N}$ is applied to a block $A$ as shown in figure. The mass of blocks $A$ and $B$ are $2 \mathrm{~kg}$ and $3 \mathrm{~kg}$ respectively. The blocks slide over a frictionless surface. The force exerted by block $A$ on block $B$ is :

In the diagram shown, the normal reaction force between $2\,kg$ and $1\,kg$ is (Consider the surface, to be smooth)$.........N$ (Given $g =10\,ms ^{-2}$)

Two wooden blocks are moving on a smooth horizontal surface such that the block of mass $m$ remains stationary with respect to block of mass $M$ as shown in the figure. The magnitude of force $P$ is 

Consider the shown arrangement. Assume all surfaces to be smooth. If $N$ represents magnitudes of normal reaction between block and wedge, then acceleration of $M$ along horizontal equals

Two blocks of  $7\,\,kg$ and $5\,\,kg$  are connected by a heavy rope of mass $4\,\,kg.$ An upward force of $200\,N$  is applied as shown in the diagram. The tension at the top of heavy rope at point $P$  is ....... $N$ $(g = 10\,\,m/s^2)$

A block of mass $M$ is at rest on a plane surface inclined at an angle $\theta$ to the horizontal. The magnitude of force exerted by the plane on the block is