The projectile, released vertically from the ground sur

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The projectile, released vertically from the ground surface, ruptured at the top of its trajectory into two fragments whose masses are referred to as m1 / m2 = 3. The velocity of the first fragment at the moment of falling to the ground is v1 = 28 m / s, the second - V2 = 56 m /from. At what height did the shell explode? Resistance to air is not taken into account.

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Task 11024. A detailed solution with a brief record of the condition, formulas and laws used in the solution, the derivation of the calculation formula and the answer.
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