MCQ
If a bomb is thrown at a certain angle with the horizontal and after exploding on the way the different fragments move in different directions then the centre of mass
  • Would move along the same parabolic path
  • B
    Would move along a horizontal path
  • C
    Would move along a vertical line
  • D
    None of these

Answer

Correct option: A.
Would move along the same parabolic path
a
When a bomb explodes in a parabolic path, different fragment goes in different path with different trajectories, but COM continues to travel in the same parabolic path because force generated during explosions is internal force and an internal force cannot change path of $COM$.

Path of $COM$ can only be decided with the help of external force only(in this case gravity) therefore 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

Similar questions

The maximum speed that can be achieved without skidding by a car on a circular unbanked road of radius $R$ and coefficient of static friction $\mu $, is
The given diagram shows three light pieces of paper placed on a wire that is stretched over two supports, $Q$ and $R$ , a distance $4x$ apart. When the wire is made to vibrate at a particular frequency, all the pieces of paper, except the middle one, fall off the wire. Which of the following could be the wavelength of the vibration?
A mass $m$ moving horizontally (along the $x-$ axis) with velocity $v$ collides and sticks to a mass of $3m$ moving vertically upward (along the $y-$ axis) with velocity $2v$. The final velocity of the combination is
The velocity of simple pendulum is maximum at
Two satellites $S_{1}$ and $S_{2}$ are revolving around a planet in the opposite sense in coplanar circular concentric orbits. At time $t=0$, the satellites are farthest apart. The periods of revolution of $S_{1}$ and $S_{2}$ are $3 \,h$ and $24 \,h$, respectively. The radius of the orbit of $S_{1}$ is $3 \times 10^{4} \,km$. Then, the orbital speed of $S_{2}$ as observed from
A cylinder of fixed capacity $44.8$ litre. contains a monatomic gas at standard temperature and pressure. The amount of heat required to cylinder by $10^o C$ will be. ($R=$ universal gas constant)
Gravitational potential difference between surface of a planet and a point situated at a height of $20\,m$ above its surface is $2\,joule/kg$. If gravitational field is uniform, then the work done in taking a $5\,kg$ body of height $4\,meter$ above surface will be ........ $J$
Two soap bubbles of radii $2 \,cm$ and $4 \,cm$ join to form a double bubble in air, then radius of curvature of interface is .......... $cm$
An object kept in a large room having air temperature of $25^{\circ} \mathrm{C}$ takes $12$ minutes to cool from $80^{\circ} \mathrm{C}$ to $70^{\circ} \mathrm{C}$. The time taken to cool for the same object from $70^{\circ} \mathrm{C}$ to $60^{\circ} \mathrm{C}$ would be nearly.....$min$
A simple pendulum suspended from the ceiling of a stationary lift has period $T_0$. When the lift descends at steady speed, the period is $T_1$, and when it descends with constant downward acceleration, the period is $T_2$. Which one of the following is true?