A uniform rope of mass $1.0\, kg$ is connected with a box of mass $2.0\, kg$, which is  placed on a smooth horizontal surface. The free end of the rope is pulled horizontally by a  force $6\, N$. Find the tension at the midpoint of the rope. ............ $N$

814-624

  • A

    $4 $

  • B

    $1$

  • C

    $5 $

  • D

    $2$

Similar Questions

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 $2$ blocks $'A'$ and $'B'$ respectively as shown in figure. The block $A$ does not slide on block $B$. Then the normal reaction acting between the two blocks is

What force should be applied on the wedge so that block over it does not move? (All surfaces are smooth)

A block of mass $m_1=1 \ kg$ another mass $m_2=2 \ kg$, are placed together (see figure) on an inclined plane with angle of inclination $\theta$. Various values of $\theta$ are given in List $I$. The coefficient of friction between the block $m _1$ and the plane is always zero. The coefficient of static and dynamic friction between the block $m _2$ and the plane are equal to $\mu=0.3$. In List $II$ expression for the friction on block $m _2$ given. Match the correct expression of the friction in List $II$ with the angles given in List $I$, and choose the correct option. The acceleration due to gravity is denoted by $g$.

[Useful information : $\tan \left(5.5^{\circ}\right) \approx 0.1 ; \tan \left(11.5^{\circ}\right) \approx 0.2 ; \tan \left(16.5^{\circ} \approx 0.3\right)$ ]

List $I$ List $II$
$P.\quad$ $\theta=5^{\circ}$ $1.\quad$ $m _2 g \sin \theta$
$Q.\quad$ $\theta=10^{\circ}$ $2.\quad$ $\left(m_1+m_2\right) g \sin \theta$
$R.\quad$ $\theta=15^{\circ}$ $3.\quad$ $\mu m _2 g \cos \theta$
$S.\quad$ $\theta=20^{\circ}$ $4.\quad$ $\mu\left(m_1+m_2\right) g \cos \theta$

  • [IIT 2014]

Figure shows three blocks in contact and kept on a smooth horizontal surface. What is ratio of force exerted by block $A$ on $B$ to that of $B$ on $C$

Arrangement of two block system is as shown. The net force acting on $1 \,kg$ and $2 \,kg$ blocks are (assuming the surfaces to be frictionless) respectively