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Physics - Gravitation Question with Solution | TestHub

PhysicsGravitationSatellite MotionEasy2 minPYQ_2020

PhysicsEasysingle choice

Two satellite $A$ and $B$ go round a planet $P$ in circular orbits having radii $4 R$ and $R$ respectively. If the speed of the satellite $A$ is $3 v$ , the speed of the satellite $B$ will be

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Answer:

Solution:

The speed of satellite is called orbital speed

$v_{0} = \sqrt{\frac{G M_{e}}{R_{e}}} \Rightarrow v \propto \frac{1}{\sqrt{R}} \Rightarrow \frac{v_{B}}{v_{A}} = \sqrt{\frac{R_{A}}{R_{B}}}$

$\frac{v_{B}}{3 v} = \sqrt{\frac{4 R}{R}} \Rightarrow v_{B} = 6 v$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:GravitationSubtopic:Satellite Motion

⏱ 2mℹ️ Source: PYQ_2020

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