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.
Promotional Banner

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^2)

A particle of mass m is projected with speed sqrt(Rg/4) from top of a smooth hemisphere as shown in figure. If the particle starts slipping from the highest point, then the horizontal distance between the point where it leaves contact with sphere and the point at which the body was placed is

A particle of mass m=5.00kg is released from point A and it slides on the frictionless track shown in figure. Determine (a) the particle's speed at points B and C and (b) the net work done by the gravitational force as the particle moves from A to C.

A particle of mass m is projected with 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.

A particle of mass m is projected with 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.

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

A particle of mass m is being circulated on a vertical circle of radius r. If the speed of particle at the highest point be v, then

A particle of mass m strikes a disc of radius R and mass m with a speed u as shown in the figure. What is the speed of the particle just after the collision if the collision is perfectly inelastic ?

A particle of mass m=1kg is projected with speed u=20sqrt(2)m//s at angle theta=45^(@) with horizontal find the torque of the weight of the particle about the point of projection when the particle is at the highest point.