Question

A shell of mass 200 gm is ejected from a gun
mass ....​

Answer 1

The mass is m = 0.2Kg and energy is E=1.05kJ=1.05×1000J

Whole energy of the explosion will be delivered to the shell in form of kinetic energy so if the velocity be v then

$\frac{{mv}^{2} }{2} = 1.05 \times 1000j$

so v =

$\sqrt{ \frac{1050 \times 2}{0.2} } = 102.46 \frac{m}{s}$

this option is not in your question

but it is correct

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