One activity i love to do is ski. I love the exhilarating feeling of going really fast down a steep incline. But in order to attain a fast speed, one must have good form to minimize AIR RESISTANCE. If someone were to go down a steep trail with their torso revealed with their arms extented out, they will reveal a ton of surface area and thus, the air will have more to make contact with. In turn, that person will not go as fast as they possibly could.
But if someone has good form that can minimize air resistance, such as tucking their arms and shoulders in and crouching down so less of their body is exposed to headwind, then they will be able to go a lot faster. The air resistance will be reduced and their speed will increase. My knowledge of physics can help me improve my speed and time down the mountain. i knew there were reasonable applications for physics!