Recent content by Killparis

This was the puzzle piece I was looking for. Thank you all, I understand now.

I understand all of this, but I don't get why the rock should "interact" with the Earth. The momentum in this book was explained on two colliding objects, so I am struggling to transfer those findings to this example. I mean, if I have a ball rolling towards a wall, the wall clearly doesn't...

Hi. I am studying physics on my own from scratch, so far so good, though I've run into this concept I am struggling to understand. If we push a large rock over a cliff, it falls because of the pull of the Earth's gravity on it. This force is its weight and it makes the rock accelerate...