Physics, asked by Anonymous, 4 months ago

A satellite in a circular orbit of radius R has a period of 4 hours. Another satellite with orbital radius 3R around the, same planet will have a period (in hours)​

Answers

Answered by sonikapoor522
1

Answer:

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Answered by Anonymous
19

Question:-

A satellite in a circular orbit of radius R has a period of 4 hours. Another satellite with orbital radius 3R around the, same planet will have a period (in hours)

Given:-

We know that Kepler's Third law states that, The square of it's period of revolution around Sun is directly proportional to cube of mean distance of a planet from the Sun. Then,

\longrightarrow\sf{ {T}^{2} ∝ {r}^{3} }⟶

\longrightarrow\sf{ \frac{ {T}^{2} }{ {R}^{3} } = Constant \: K \: .... \: (1)}⟶

\longrightarrow\sf{ ( { \frac{T_1}{T_2} )}^{2} = ( { \frac{R_2}{R_1} )}^{3} }⟶

\longrightarrow\sf{ \frac{T_2}{T_1} = (\frac{R_2}{R_1} ) {}^{\frac{3}{2} } }⟶

Thus, we get,

\star \: \boxed{\sf\green{T_2 = t_1( \frac{R_2}{R_1} ) {}^{ \frac{3}{2} } }}⋆

Thus, Period of second satellite will be:

\longrightarrow\sf{t_2 = 4( \frac{3R}{R} ) {}^{ \frac{3}{2} } }⟶

\longrightarrow\sf{t_2 = 4 \times 3 {}^{ \frac{3}{2} } }

\longrightarrow{\underline{\boxed{\sf{T_2 = 4 \sqrt{27} \: hr}}}}⟶

Thus,

The same planet will have a period of 4 √27 hours.

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