Explain in not more than two sentences why the minimum speed required to leave…

PHYSICS · Subjective · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

Explain in not more than two sentences why the minimum speed required to leave Earth’s gravitational field is greater than the speed needed to stay in a close circular orbit by a factor of

\sqrt{2}

Related theory

Satellites & Orbital Motion
Gravitation
Escape Velocity
Escape speed

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