celestial mechanics
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The motion of an object under the influence of gravity is determined by the acceleration of gravity, its launch speed, and launch angle, provided air friction is negligible. The diagram shows launches at different angles, but at the same speed. The 45° launch angle provides the maximum range.
Branch of astronomy that deals with the calculation of the orbits of celestial bodies, their gravitational attractions (such as those that produce the Earth's tides), and also the orbits of artificial satellites and space probes. It is based on the laws of motion and gravity laid down by 17th-century English physicist and mathematician Isaac Newton.
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