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Variation of g (Acceleration Due to Gravity)

at what point...

Question

at what point of the earth acceleration due to gravity becomes zero

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Solution

Acceleration due to gravity is zero at the centre of the earth.

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Similar questions

Q. At what height

^{'} h^{'}

from the earth surface, acceleration due to gravity becomes half as that of acceleration due to gravity on the surface of earth.
[

R

= Radius of earth]

Q. Calculate angular velocity of earth so that acceleration due to gravity at

60^{o}

latitude becomes zero. (Radius of earth

= 6400

km, gravitational acceleration at poles

= 10 m / s^{2}, cos 60^{o} = 0.5

)

Q. At what angular speed the Earth should rotate, so that effective acceleration due to gravity at

45^{\circ}

latitude becomes half of effective acceleration due to gravity at pole? (Radius of earth is

R

and acceleration due to gravity without taking variation of Earth’s rotation at surface is

‘ g^{'}

)

The acceleration due to gravity becomes g/2 (g= acceleration due to gravity on the surface of earth) at a height equal to

Q. At what angular speed the Earth should rotate, so that effective acceleration due to gravity at

45^{\circ}

latitude becomes half of effective acceleration due to gravity at pole? (Radius of earth is

R

and acceleration due to gravity without taking variation of Earth’s rotation at surface is

‘ g^{'}

)

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