Download App

6. system of particles and rotational motion — Physics STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 SciencePhysics6. system of particles and rotational motion1 Mark
MCQ
A shell fired from a gun at an angle to the horizontal explodes in mid air. Then the centre of mass of the shell fragments will move
  • A
    Vertically down
  • B
    Horizontally
  • ✓
    Along the same parabolic path along which the intact shell was moving
  • D
    Along the tangent to the parabolic path of the intact shell, at the point of explosion
✓

Answer

Correct option: C.
Along the same parabolic path along which the intact shell was moving
c
By conservation of momentum, centre of mass moves on the same parabolic path.

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 6. system of particles and rotational motion→6. system of particles and rotational motion — all question types→Physics STD 11 Science question papers→Rajasthan Board STD 11 Science question papers→Rajasthan Board question paper generator→

Similar questions

A body falling vertically downwards under gravity breaks in two parts of unequal masses. The centre of mass of the two parts taken together shifts horizontally towards:
→
The position-time $(x-t)$ graph for positive acceleration is
→
A small ball is projected up a smooth inclined plane with an initial speed of $10\ m/s$ along the direction at $30^o $ to the bottom edge of the slope. It returns to the edge after $2\, s$. The ball is in contact with the inclined plane throughout the process. ....... $^o$ is the inclination angle of the plane.
→
The mass and volume of a body are 4.237g and 2.5cm3, respectively. The density of the material of the body in correct significant figures is:
→
An object while moving may not have:
→
The units of modulus of rigidity are
→
The density of a material in $CGS$ system of units  is $4\, g\, cm^{-3}$ . In a system of units in which unit of length is $10\, cm$ and unit of mass is $100 \,g,$ the value of density of material will be
→
The speed of a particle of mass $m$ denoted by $\frac{ d ^2 x}{ dt ^2}+$ $\alpha x=0$. Its angular frequency will :
→
A body starts from the origin and moves along the $X-$axis such that the velocity at any instant is given by $(4{t^3} - 2t)$, where $t$ is in sec and velocity in$m/s$. What is the acceleration of the particle, when it is $2\, m$ from the origin..........$m/{s^2}$
→
A particle is projected from horizontal making an angle of $53^{\circ}$ with initial velocity $100\,m / s$. The time taken by the particle to make angle $45^{\circ}$ from horizontal is $.........\,s$
→