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Calculate the acceleration due to gra...

Calculate the acceleration due to gravity on the earth 's surface , given that gravitational constant `G = 6.7 xx 10^(-11)` SL unit , radius of he earth = ` 6. 4 xx 10 ^(6) m ` and mean density of earth = ` 5.5 xx 10^(3) kg m^(-3)`.

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The correct Answer is:
`9.98 ms^(-2)`
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Calculate the speed of projection necessary to send a body right out of the filed of the earth's grvivtational attraction. G= 6.63 xx10^(-11) "newton metre^(2) " Kg^(2) Mass of the earth = 5.97 xx 10^(24) Radius of the earth = 6.37 xx 10^(6) m .

A mango of mass 0.3 kg falls from a tree. Calculate the acceleration of the mango towards the earth. Also calculate the acceleration of the earth towards the mango. Take, Mass of the earth = 5.983 xx 10^(24) kg Radius of the earth = 6.378 xx 10^(6) m G = 6.67 xx 10^(-11) Nm^(2) kg^(-2)

Determine the gravitational potential on the surface of earth, given that radius of the earth is 6.4 xx 10^(6) m : its mean density is 5.5 xx 10^(3)kg m^(-3) , G = 6.67 xx 10^(-11) Nm^(2) kg^(-2) .

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NN GHOSH-GRAVITATION-EXERCISE
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  14. A short , straight and frictinless tunnel is bored through the centr...

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  15. Two particle of mass m and M are initially at rest at inifinte ...

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  16. Three identical particles each of mass "m" are arranged at the corner...

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  17. An iron ball o fradius 1 m and density 8000 kg m^(-3) is placed in ...

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  18. A particles is fired vertically from the surface of the earth with a...

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  19. Calculate the pressure caused by gravitational copmression at the cen...

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