1 exploring universe Law of gravitation: Isaac newton – All the laws of science were only applied on earth but not on heavens but newton said the opposite. Realized the physical laws that operate on earth also operate in the heavens – One universe. – Anything with mass attracts everything with mass. – Force of gravity between you and eath is much than people. The attraction is directly proportional to the product of their masses. – Attraction is inversely proportional to the square of the distance between their centers. – Kepler’s law applies to all the orbiting objects but not just planets. Center of mass – Sun orbits the center of mass. – (MX) gravity is directly proportional to the product of the masses. Lecture 2 – Newton’s laws of motion – 1st law – Things move at a constant velocity 2nd – force is proportional to the mass of the object. Mass x acceleration 3rd for every force there’s an equal opposite reaction force. Earth and you exert the same and opposite forces on each other.
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