Question

If $v _ { e }$ and $v _ { o }$ represent the escape velocity and orbital velocity of a satellite corresponding to a circular orbit of radius R, then

• A. $v _ { e } = v _ { o }$
• B. $\sqrt { 2 } v _ { o } = v _ { e }$
• C. $v _ { e } = v _ { 0 } / \sqrt { 2 }$
• D. $v _ { e }$ and $v _ { o }$ are not related

Answer 1

Answer: (B)

$\sqrt { 2 } v _ { o } = v _ { e }$

Answer 2

$v _ { e } = \sqrt { 2 g R }$ and ∴