Cyrus Gold Solomon Grundy, is a Zombie supervillain who has clashed with many heroes over the. Equations for a falling body. A set of equations describe the resultant trajectories when objects move owing to a constant gravitationalforce under normal Earth bound conditions. For example, Newtons law of universal gravitation simplifies to F mg, where m is the mass of the body. This assumption is reasonable for objects falling to earth over the relatively short vertical distances of our everyday experience, but is untrue over larger distances, such as spacecraft trajectories. Please note that in this article any resistance from air drag is neglected. HistoryeditGalileo was the first to demonstrate and then formulate these equations. He used a ramp to study rolling balls, the ramp slowing the acceleration enough to measure the time taken for the ball to roll a known distance. 12 He measured elapsed time with a water clock, using an extremely accurate balance to measure the amount of water. note 1The equations ignore air resistance, which has a dramatic effect on objects falling an appreciable distance in air, causing them to quickly approach a terminal velocity. The effect of air resistance varies enormously depending on the size and geometry of the falling object for example, the equations are hopelessly wrong for a feather, which has a low mass but offers a large resistance to the air.
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