When a bomb explodes during projectile motion | vedclass

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Question

(A) The motion of the centre of mass of a system is governed by the equation $F_{ext} = M a_{cm}$,where $F_{ext}$ is the net external force acting on

Vedclass · Accepted Answer

Internal forces

Vedclass · Answer

(A) The motion of the centre of mass of a system is governed by the equation $F_{ext} = M a_{cm}$,where $F_{ext}$ is the net external force acting on the system and $M$ is the total mass of the system.Internal forces are forces that particles within the system exert on each other. According to Newton's third law,these forces occur in equal and opposite pairs,so their vector sum is always zero.Therefore,internal forces do not affect the acceleration or the motion of the centre of mass of the system.In the case of an exploding bomb,the explosion is caused by internal chemical forces. These forces do not change the trajectory of the centre of mass,which continues to follow the original parabolic path determined by gravity.

When a bomb explodes during projectile motion,which forces do not contribute to the motion of the centre of mass?

Similar Questions

Assertion $(A):$ If there is no external torque on a body about its centre of mass,then the velocity of the centre of mass remains constant.
Reason $(R):$ The linear momentum of an isolated system remains constant.

Internal forces acting in a system of particles can change:

Which types of forces act on a system of particles?

Under which force the centre of mass is moving?

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