Physics of the Ollie Skateboard Move :: physics skateboarding trick tricks

Missing figuresBrief History of Skate batting ordering.In the beginning, skate consisted of a 2x4 and some senescent roller-skate wheels. Around the 1950s with the boom in the surfing popularity, skateboarding became more popular. During this time it was known as paving surfing. In the 1960s is when skateboarding really took impinge on. This is when the first skateboards were produced and sold. During this time period skateboarding consisted of cruising around the ways on your board. In 1978 a 15 year old boy by the name of Alan Ollie Gelfand invented a stratagem he called the no-hands air. His friends named afterwards him the ollie. This was a ramp based trick. In the coming years a rider by the name of Rodney Mullen took the trick and applied it to flatland skateboarding. After this school principal skateboarding began to evolve in to the sport it is today. Virtually every trick in the modern day skateboarding involves the ollie. When a skateboar der rolls down the street they arouse forces acting in the X and Y direction. The forces that I allow focus on are only in the Y direction. As a skater rides down the street there are three forces acting on the skateboard. The red arrows in the image indicate the force of dryness on the mass of the skater(Mg). The black arrow represents the force of gravity on the skateboard(mg). The blue arrows are the FN or natural force of the ground displace up on the wheels of the board. These forces have a net force of zero. conglomeration of forces in Y Mg + mg - FN = 0As the skater prepares to ollie they get off the center of gravity by bending at the knees and waist. Next the skater leave begin to explode in the positive Y direction by pressing down on the tail of the board. The red arrows now have an uneven distribution to the tail of the board causing lift on the nose. All of the FN is now pushing up on the rear wheels.At this point the skater is has applied a large downward for ce on the tail causing the board to pop or bounce off of the ground. The downward force applied is greater than the force of gravity allowing the board to begin leaving the ground.