Skateboarding is a very diverse extreme sport, some do it just for the ride, while others work their way up to performing tricks on their skateboards, using their feet, the friction of the skateboard, and the courage of an idiot. Since the physics involved in actual skate boarding tricks is immensely complex, in this blog I will be explaining the physics behind simply riding a skateboard. When riding a skateboard, in order to accelerate, one must create rotational energy in the wheels, by balancing most of their weight on the skateboard with one foot, and using friction to their advantage by placing the other foot on the ground and pushing off (much like walking, only you accelerate much more quickly). once in motion, the rider may return the other foot to the skateboard and ride on, however, immediately after the final push. One begins to decelerate at a pretty consistent speed (taking into consideration the surface one is travelling on and the efficiency of the bearings in the wheels) so "pushing" is a constant necessity to keep the board in motion... And that is the physics behind riding on a skateboard.