Задача 10167.

When fired from a spring pistol vertically, the top of a bullet with a mass m=20 g rose to a height h=5m. Determine the stiffness of the pistol spring if it was compressed by 10 cm. The mass of the spring can be neglected.

A detailed solution with a brief note of the conditions, formulas and laws used in the solution, the derivation of the calculation formula and the answer.