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Orbital speeds of satellites in different orbits

This type of question, asked 3 times: 25 Jun 2022, 10 Apr 2023, 8 Apr 2024. All 3 questions below, oldest first.

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  1. Question 1

    25 Jun 2022

    115
    Two satellites S1S_{1} and S2S_{2} are revolving in circular orbits around a planet with radius R1=3200 kmR_{1}= 3200\text{ }km and R2=800 kmR_{2}= 800\text{ }km respectively. The ratio of speed of satellite S1S_{1} to the speed of satellite S2S_{2} in their respective orbits would be 1x\frac{1}{x} where x=x =
  2. Question 2

    10 Apr 2023

    13
    Two satellites of masses mm and 3 m3\text{ }m revolve around the earth in circular orbits of radii rr & 3r3r respectively. The ratio of orbital speeds of the satellites respectively is:

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  3. Question 3

    8 Apr 2024

    99
    Two satellite A and B go round a planet in circular orbits having radii 4R4R and RR respectively. If the speed of AA is 3v3v, the speed of BB will be:

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