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Keplers’s Laws of Planetary Motion, Kepler's Law, Law of Orbits, Law of Areas, Law of periods

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  Keplers’s Laws of Planetary Motion: 1 st law ( Law of Orbits ): Every planet moves around the sun in elliptical orbit with the sun at one of the foci of the elliptical orbit. 2 nd   law ( Law of Areas): The line joining the planet to the sun sweeps over equal areas in equal intervals of time.                                                             Area of SAB = Area of SCD  2 nd   law tells us that a planet does not move with constant speed around the sun. It speeds up while approaching the nearest point called ‘ perigee’ and slows downs while approaching the farthest point called ‘ apogee’. therefore, distance covered on the orbit with in the given interval of time at perigee is greater than that at apogee such that areas swept are equal. 3 rd Law ( Law of periods): The square of the time periods of revolution of...
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Newton's Law, Acceleration, Velocity, Force

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  Newton’s Law of Motion Sir Isaac Newton (1643-1727) an English scientist and mathematician famous for his discovery of law of gravity also discovered the three laws of motion.      Newton’s Laws of Motion                            Newton’s First Law: Object in motion tend to stay in motion and objects at rest tend to stay at rest unless acted upon by an unbalanced force.   Newton’s Seconds Law: Force equals mass time acceleration (f = ma).   Newton’s Third Law: For every action there is an equal and opposite reaction.                               Newton’s First Law An object at rest tend to stay at rest and object in motion tends to stay in motion unless acted upon by an unbalanced force....
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