Question

Explain Laws of planetary motion.
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Answer 1

${\green{\huge{ \underline{ \boxed{ \red{{ \mathscr{A \bf{nswer}}}}}}}}}$

${\underline{\purple{\textbf{Kepler's Laws Of Planetary Motion:-}}}}$

${\underline{\blue{\textrm{Kepler's First Law:-}}}}$

The plants move in elliptical orbits around the sun, with the sun at, one of the two faci of the elliptical orbits.

${\underline{\blue{\textrm{Kepler's Second Law:-}}}}$

Each planet revolves around the sun in such a way that the line joining the planet to the sun. sweeps over equal areas in equal interval of time.

${\underline{\blue{\textrm{Kepler's Third Law:-}}}}$

The cube of the mean distance of a planet from the sun is directly proportional to the square of time. it takes to move around the sun.

$\large{ \pink{\bf \: {r}^{3} \propto \:T{}^{2} }}$

$\large{ \pink{\bf \: {r}^{3} = \:{kT}^{2} }}$

$\large{ \pink{\bf \frac{{r}^{2}}{T{}^{2} } = \:k}}$

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Answer 2

$\bold\pink{Answer:-}$

Kepler's three laws of planetary motion can be stated as follows:

$\small\red{1 -}$Kepler's first law - sometimes referred to as the law of ellipses - explains that planets are orbiting the sun in a path described as an ellipse. ... The resulting shape will be an ellipse. An ellipse is a special curve in which the sum of the distances from every point on the curve to two other points is a constant.

$\small\red{2 -}$Kepler's second law states that a planet moves in its ellipse so that the line between it and the Sun placed at a focus sweeps out equal areas in equal times.

$\small\red{3 -}$Kepler's third law - sometimes referred to as the law of harmonies - compares the orbital period and radius of orbit of a planet to those of other planets.

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