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Solve the following examples / numerical...

Solve the following examples / numerical problems:
A body of mass 20 kg is at rest on the earth's surface. (i) Find its gravitational potential energy. (ii) Find the kinetic energy to be provided to the body to make it free from the gravitational influence of the earth. (g=9.8 m/s^2, R=6400km)

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NAVNEET PUBLICATION-GRAVITATION-EXERCISE
  1. Solve the following examples / numerical problems: Find the gravitat...

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  2. Solve the following examples / numerical problems: If the body perfo...

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  3. Solve the following examples / numerical problems: A body of mass 20...

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  4. Solve the following examples / numerical problems: If the body is mo...

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  5. Solve the following examples / numerical problems: A satellite of ma...

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  6. Solve the following examples / numerical problems: Find the escape v...

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  7. Solve the following examples / numerical problems: Find the escape v...

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  8. Solve the following examples / numerical problems: Calculate the esc...

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  9. Solve the following examples / numerical problems: The mass of a pla...

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  10. A satellite of mass 1000 kg revolves around the earth in a circular pa...

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  11. The masses of two spheres are 10 kg and 20 kg respectively. If the dis...

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  12. A satellite revolves around the earth along circular path. If the mass...

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  13. Find the acceleration due to gravity at a distance of 20000 km from th...

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  14. What is the weight of a body of mass 100 kg at the south pole ? (g=9.8...

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  15. What is the weight of a body of mass 20kg at the equator ?(g=9.78 m/s^...

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  16. A body is released from the top of a tower of height 50 m. Find the ve...

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  17. A body is thrown vertically upward with a velocity of 9.8 m/s. Calcula...

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  18. A particle of mass 10^-6 kg performs uniform circular motion. Its peri...

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  19. Find the gravitational potential energy of a body of mass 200 kg on th...

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  20. Find the gravitational potential energy of a body of mass 10 kg when i...

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