Question

plz plz............. help me guys ​

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

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

$so \: \: v = \sqrt{ \frac{1050 \times 2}{0.2} } =102.46m/s$

Answer 2

Answer is 102/8 m /s......

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