The figures show a hypothetical planetary system at two different times. The system has a star S and three planets, labeled A, B, and C. The table provides the mass of each body in the system, as well as their spatial coordinates (x, y) in their initial and final positions. The spatial coordinates of the bodies are given in Astronomical Units (AU). Initital Position Body S A B C Mass (kg) mg = 2.3863 × 10³⁰ mA = 2.1957 × 1028 m³ = 6.2841 × 1026 mc = 7.8063 x× 1027 (0,0) (0.4815, 0) (0.4373, 1.3397) (0, 1.6711) Final Position (xs, ys) (0, -0.4913) (-1.6007, 0) (-0.8443,-0.7481) The initial velocity of the center of mass of the system is zero. Find the magnitude ds of the star's displacement from the origin in its final position.
Gravitational force
In nature, every object is attracted by every other object. This phenomenon is called gravity. The force associated with gravity is called gravitational force. The gravitational force is the weakest force that exists in nature. The gravitational force is always attractive.
Acceleration Due to Gravity
In fundamental physics, gravity or gravitational force is the universal attractive force acting between all the matters that exist or exhibit. It is the weakest known force. Therefore no internal changes in an object occurs due to this force. On the other hand, it has control over the trajectories of bodies in the solar system and in the universe due to its vast scope and universal action. The free fall of objects on Earth and the motions of celestial bodies, according to Newton, are both determined by the same force. It was Newton who put forward that the moon is held by a strong attractive force exerted by the Earth which makes it revolve in a straight line. He was sure that this force is similar to the downward force which Earth exerts on all the objects on it.
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