Science fair update 1: Research

Haven't updated in a while but i have gathered all of my research since Tuesday. I have learned what Static Friction was, which is the force you need to overcome in order to move that object. Kinetic friction is the force needed in order to keep that object in motion after you overcome static friction. Kinetic friction is usually less than static friction. I have found that newton's second law of motion is important in order to find how much force is being applied to the object. The equation is F = m*a which is mass times acceleration. Normal force is defined as the net force compressing two parallel surfaces together; and its direction is perpendicular to the surfaces. In the simple case of a mass resting on a horizontal surface, the only component of the normal force is the force due to gravity, which means Fn = m*g which is mass times gravity.Coefficient of friction is a value which describes the ratio of the force of friction between two bodies and the force pressing them together. The coefficient of friction depends on the materials used like objects sliding over ice have a higher Coefficient than sliding them across wood. Aside from this i have obtained equations from my physics book that help me solve for static and kinetic friction..