One of the sports I like to do during the winter is skiing. When referring to physics, I can think about a lot of relationships comparing both. When skiing down an declined mountain, I know that mg or the weight of gravity is acting on me, as well as the the normal force of the mountain pushing up on me in a perpendicular direction to the mountain. Also, there's a force of friction pushing back me, but not much since I'm accelerating down the mountain. Overall, there's many examples of how newton's laws and/or physics applies to skiing.