Home
Class 12
PHYSICS
A particle of mass 3m is projected from ...


A particle of mass 3m is projected from point-A with speed `3v_(0)` as shown in figure. When the particle is at point `P`, it explodes in three identical particles choose the INCORRECT statement regarding the physical quantities just before and just after explosion

A

The linear momentum of system can be conserved just before and just after explosion.

B

The centre of mass of the system will trace same path as it will follow without explosion.

C

The mechanical energy of the system remains conserved just before and just after explosion

D

The impulse given by the weight of particle during explosion is negligible as compared to that by the explosive forces.

Text Solution

Verified by Experts

The correct Answer is:
C
Weight is non impulsive force during explosion.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • TEST PAPERS

    FIITJEE|Exercise PHYSICS|747 Videos

  • SIMPLE HARMONIC MOTION

    FIITJEE|Exercise Assignment Problems (Objective) (Level-II)|20 Videos

  • WORK, ENERGY AND POWER

    FIITJEE|Exercise COMPREHENSIONS ( Comprehension-II)|5 Videos

Similar Questions

Explore conceptually related problems

A particle of charge q is projected from point P with velocity v as shown. Choose the correct statement from the following.

A particle is projected along an inclined plane as shown in figure. What is the speed of the particle when it collides at point A ? (g = 10 m//s)

Knowledge Check

  • Three point particle A, B and C are projected from same point with same speed at t=0 as shown in figure. For this situation select correct statement(s).

    A
    All of them reach the ground at same time
    B
    All of then reach the ground at different time.
    C
    All of them reach the ground with same speed
    D
    All of them have same horizontal displacement when they reach the ground

    • Similar Questions

    Explore conceptually related problems

    A particle is given velocity v_0 at point A as shown in the figure. Find the speed of particle at point B,C and D

    Particle projected from tower fo heigh 10m as shown in figure. Find the time (in sec) after which particle will hit the ground.

    A particle of mass m is projected with a speed u at an angle theta with the horizontal. Find angular momentum of particle after time t about point of projection.

    A particle of mass m is projected with a speed v_(0) at an angle of projection theta with horizontal. Find the torque of the weight of the particle about the point of projection after time (v_(0)sintheta)/(g)

    If a particle of mass m is thrown with speed at an angle 60° with horizontal, then angular momentum of particle at highest point about point of projection is

    If a particle of mass m is thrown with speed v, at an angle 60° with horizontal, then angular momentum of particle at highest point about point of projection.

    A particle of mass m is projecte dwilth speed u at an angle theta with the horizontal. Find the torque of the weight of the particle about the point of projection when the particle is at the highest point.

    Home
    Profile