Two satellites S1 and S2 are revolving in circular orbits around a planet with radius R1 = 3200 km and R2 = 800 km respectively. The ratio of speed of satellite S1 to be speed of satellite S2 in their respective orbits would be ${1 \over x}$ where x = ___________.
Answer (integer)
2
Solution
<p>$v = \sqrt {{{GM} \over R}}$</p>
<p>$\Rightarrow {{{v_1}} \over {{v_2}}} = \sqrt {{{{R_2}} \over {{R_1}}}}$</p>
<p>${{{v_2}} \over {{v_1}}} = \sqrt {{{3200} \over {800}}} = 2$</p>
<p>$\Rightarrow {{{v_1}} \over {{v_2}}} = {1 \over 2}$</p>
<p>$x = 2$</p>
About this question
Subject: Physics · Chapter: Gravitation · Topic: Satellites and Orbital Motion
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