Fun at the Beach

This past summer, I went to Lanikai Beach with my friends to try to escape the hot summer sun and enjoy the ocean. While at the beautiful beach, my friend took this picture of me jumping off a tiny cliff onto the ground. After looking back at my pictures, I realized that this in fact is Physics also. After I jumped up into the air, my acceleration was -9.8 meters per second squared because I was carried only by gravity. Then, I reached a peak where my velocity was 0 m/s and I stopped going up and began descending down towards the ground at the same accleration of -9.8 meters per second squared. This demonstrates the affect of gravity "g" on acceleration. There was no outside force pushing me down, or pulling me up which is why my acceleration was always -9.8 meters per second squared no matter what direction I was moving. The sign of this value is always negative because even though I am moving in a positive direction, I am slowing down, and when I am moving in the negative direction, I am speeding up. Who knew that my simple jump at the beach could hold so much physics behind it?