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A rocket is fired vertically with a spee...

A rocket is fired vertically with a speed of `5 km *s^(-1)` from the earth's surface . How far from the earth does the rocket go before returning to the earth ? Mass of the earth=`6.0xx10^(24)kg`, mean radius of the earth= `6.4xx10^6m, G=6.67*10^(-11)N*m^2*kg^(-2)`.

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The correct Answer is:
`8.0xx10^6`m from earth's centre
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CHHAYA PUBLICATION-NEWTONIAN GRAVITATION AND PLANETARY MOTION-PROBLEM SET -II
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  2. How much below the surface of earth does acceleration due to gravity b...

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  3. The ratio of the mass of the moon to that of the earth is 1:81. If th...

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  4. A rocket is fired vertically with a speed of 5 km *s^(-1) from the ear...

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  5. A rocket starts vertically upward with speed v0. Show that its speed...

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  6. A body is projected vertically upwards from the surface of earth with ...

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  9. The radius of the earth = R. if a geostationary satellite is revolving...

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  11. An artificial satellite is moving in a circular orbit around the earth...

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  12. An artificial satellite is moving in a circular orbit around the earth...

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  13. The mass and the radius of the moon are 1/(80)th and 1/4 th respective...

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  15. A body of mass m is raised from the surface of the earth up to a heigh...

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  19. An artificial satellite is moving in an orbit around the earth with a ...

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  20. Show that the moon would escape if its speed were increased by 42% .

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