Recent content by pmascaros

Thank you, very much. I think I understand better. Thanks :smile:

Thanks raopeng. But still I wonder. When I throw the ball, If instead of bouncing the ball, all stones or elements on the planet raised a little, it would maintain the momentum, why is it that gets the ball back almost all the energy, and not get distributed?

English is not my native language. My question is about what happens when we throw a ball on the floor. I understand why the ball bounces off it. But I have a question, I wonder why almost all the kinetic energy get back to the ball, rather than lost in the land, that is, why this energy is...