A block of mass M is tied to one end of massless rope. The other … - Vidyadip

MCQ

A block of mass $M$ is tied to one end of massless rope. The other end of rope is in the hands of a man of mass $2M$ as show in figure. Initially the block and the man are resting on a rough plank of mass $2M$ as shown in figure. The whole system is resting on a smooth horizontal surface. The man pulls the rope. Pulley is massless and frictionless. What is the magnitude of displacement of the plank when the block meets the pulley ......... $m $ (Man does not leave his position on the plank during the pull).

A
$0.5$
✓
$0.6$
C
$1.5$
D
$2$

✓

Answer

Correct option: B.

$0.6$

b
$4m x = m(3 -x)$

$ \Rightarrow x = \frac{3}{5} = 0.6\ m$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from 4.1 , newtons laws of motion→4.1 , newtons laws of motion — all question types→Physics STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

A metal wire of uniform mass density having length $L$ and mass $M$ is bent to form a semicircular arc and a particle of mass $m$ is placed at the centre of the arc. The gravitational force on the particle by the wire is:

A block pressed against the vertical wall is in equilibrium. The minimum coefficient of friction is:-

A solid sphere of mass $m$ , radius $R$ is released from rest on sufficient rough long inclined plane of inclination $\theta $ . Consider four points $A$ , $B$ , $C$ and $D$ on the sphere. After one revolution

A rope is wound round a hollow cylinder of mass $5\,kg$ and radius $0.5\,m.$ ........ $rad/s^2$ is the angular acceleration of the cylinder if the rope is pulled with a force of $20\,N$ ?

The force-time $(F -t) $ curve of a particle executing linear motion is as shown in the figure. The momentum acquired by the particle in time interval from zero to $8$ second will be ........... $N-s$

A body of mass $1\, kg$ is moving in a vertical circular path of radius $1\,m$. The difference between the kinetic energies at its highest and lowest position is ......... $J$

The rotation of the earth having radius $R$ about its axis speeds upto a value such that a man at latitude angle $60^{\circ}$ feels weightless. The duration of the day in such case will be:

Consider a situation in which a ring, a solid cylinder and a solid sphere roll down on the same inclined plane without slipping. Assume that they start rolling from rest and having identical diameter.

The correct statement for this situation is:-

In the figure one fourth part of $a$ uniform disc of radius $R$ is shown. The distance of the centre of mass of this object from centre $‘O’$ is:

Aball of mass $m$ is thrown vertically upwards.Assume the force of air resistance has magnitude proportional to the velocity, and direction opposite to the velocity's. At the highest point, the ball's acceleration is