Why does a rat not die even after falling from fifth floor?

Answer 1

its a matter of simple Biology and Physics

Say the rat is represented by "x" the constant being that of gravity is equal to 9.8 m/s A rat falling from the 5th floor of a building gains a mass/velocity index of 200/7.632 due to, among other factors, the aero-dynamics of the rats coat, it works as a windbreak slowing down the rat as it slowly spirals towards safty. Natural selection has developed this survival mechinism back from the industrial revolution where they would fall to there deaths down the long factory chimneys