A shell of mass 200 gm is ejected from a gun of mass 4 kg by an explosio...

A shell of mass 200 gm is ejected from a gun of mass 4 kg by an explosion that generates 1.05 kJ of energy. The initial velocity of the shell is

AIPMT/NEET 2008| W.P.E Q 2 | As explosion took place , both shell and gun will move, according to law of conservation of Momentum.( the linear momentum of a system remains constant (in magnitude and direction), if the external forces acting on the system add up to zero). But Momentum of both will be equal and opposite . Total energy of explosion will be shared by both the gun and the shell according to their masses.

Follow the Firangi : First , we need to find magnitude of momentum gained by shell and gun in the second part we can find initial velocity of shell.

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