skateboard

This weekend i decided to skateboard to my friend elysse's house to save gas. I stood on my board at the top of the hill, and thought of Newton's First Law, every object continues in its state of motion, until acted upon by a net force. I stood on my board at the top of the hill. I would have stayed in one place if it wasn't for the force of gravity increasing my velocity down the incline. The friction of my wheels rolling on the pavement as well as the air resistance from the wind blowing against me were both forces acting against the gravity; however, the force of gravity was stronger and therefore i kept on rolling. I soon realized that my velocity was becoming too great and i had to slow myself down. Luckily i always carry my umbrella in case of rain. I knew from physics that if i opened the umbrella, my surface area would increase, and therefore increase air resistance, so i opened it and held it behind me. I could feel it pull me back, but it still wasnt enough to counteract the forward force pulling me down the hill.