Physics of Skydiving :: physics skydiving

The Forces at WorkGravity... God OBVIOUSLY intended for us to skydive. After all He DID create gravitational attractionSo exactly what puffs argon acting on the skydiver? Well, of course theres the obvious one, the force of gravity of the Earth. This force is exerted on everything on the Earth and is exerted on the skydiver nonetheless though there is no direct contact between the skydiver and the Earth. This type of force, when two objects exert forces on one another even though they are not touching, is known as a noncontact force.According to Newtons second law, the acceleration of an object as produced by a net force is directly proportionate to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the fold of the object orFnet =maThe gravitational force that the Earth exerts on the skydiver is equal to the weight of the object on Earth. The acceleration of the gravitational force is the acceleration collect to gravity (g), wh ich is the acceleration of an object down the stairs the sole influence of gravity. Thus, the weight of an object is a product of its mass and acceleration due to gravity orW=mgThe acceleration due to gravity (g) near the Earths surface is a constant that was determined to be 9.80 m/s. So, the weight of an object depends on how much mass an object has. The mass of an object is a quantitative measure of inertia, where inertia is the natural tendency of an object to stay at rest or in motion at a constant speed along a straight line. gentle wind ResistanceAnother force acting on the parachutist is air resistance. Air resistance is the colliding of an object with molecules of air. The falling skydiver collides with air molecules during the downward fall. These air molecules create a force pushing upward which is opposite to the skydivers direction, as well as the force of gravity. Air Resistance is more complicated force than the force of gravity because it is a nonconservative force. A nonconservative force is one in which the work it does on an object moving in between two points depends on the path of the motion between the two points. The amount of air resistance encountered by the skydiver depends in the main on two factors1 The speed of the skydiver.2 The cross-sectional area of the skydiver.An step-up in the speed and/or the amount of cross-sectional area leads to an increase in the amount of air resistance encountered.