Consider a diagram showing an object launched from the Earth's surface with an initial velocity $ V_i $. The object reaches a point far away from Earth where its velocity becomes zero. Which of the

Question

Consider a diagram showing an object launched from the Earth's surface with an initial velocity $V_i$ . The object reaches a point far away from Earth where its velocity becomes zero. Which of the following equations correctly represents the condition for the object to never return to Earth?

A

$V_i \geq \sqrt{2gR_E}$

B

$V_i = \sqrt{gR_E}$

C

$V_i > \sqrt{gR_E/2}$

D

$V_i \leq \sqrt{2gR_E}$

Accepted Answer

$ V_i \geq \sqrt{2gR_E} $

Answer

$ V_i = \sqrt{gR_E} $

Answer

$ V_i > \sqrt{gR_E/2} $

Answer

$ V_i \leq \sqrt{2gR_E} $

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