Задача 20744.

In the melting ice falls a bullet with a mass of 10 g, flying at a speed of 1 km / s. Considering that half the energy of the bullet went to the fragmentation of the ice, and the other to its melting, to find a mass of melted ice.

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.
If you have any questions about the solution, please write. I try to help.