Physics

Problem

Three stones are thrown horizontally with the following masses and speeds: A:

0.5\,\text{kg}

20\,\text{m}\,\text{s}^{-1}

1\,\text{kg}

15\,\text{m}\,\text{s}^{-1}

2\,\text{kg}

11\,\text{m}\,\text{s}^{-1}

Arrange the stones in decreasing order of kinetic energy, writing only the letters.