What is the minimum velocity needed for a spaceship to escape the Earth's gravitational force?

11.2 km/s

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22.4 km/s

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5.6 km/s

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9.8 km/s

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A space-ship is put into a circular orbit close to Earth's surface. What additional velocity must be imparted to the ship so that it is able to escape the gravitational pull of Earth(approximately)? $(R = 6400 k m, g = 9.8 \frac{m}{s^{2}})$

The escape velocity from the earth is about $11 k m s^{- 1}$ . The escape velocity from a planet having twice the radius and the same mean density as the earth, is

Q. What is the minimum velocity needed for a spaceship to escape the Earth's gravitational force?

Q. A spaceship goes into a circular orbit close to the earth's surface. What additional velocity must be imparted to the ship so that it is able to escape the gravitational pull of the earth? (R

= 6400

km, g

= 9.8

s^{- 2}

)

Q. Escape velocity from earth is about

11 k m s^{- 1}

. Escape velocity from a planet having twice the radius and same mean density as the earth is.

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