The value of g is greater at poles then at equator.Why?
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the value of g is greater at poles becoz as the earth is in oval shape the poles r near frm the centre as compared to the the equator so value of g is greater at poles
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THE VALUE OF g IS GREATER AT THE POLES.
it is due to the rotation of the earth on its axis.
it depends on the angle that the straight line joining your position and the centre of the earth makes with the prime meridian(latitude perpendicular to equator).
the formula for g is
g' = g-(w)^2 *r [w=angular speed]
=g-(w)^2*Rsin(theta) [R=radius of earth]
now for equator theta=90 =>sin(theta)=1
so, value of g'= g- (w)^2 *R
and for poles theta=0 =>sin(theta)=0
so,g' =g-0
Therefore value of g is greater at poles..
Hope it helps you buddy
it is due to the rotation of the earth on its axis.
it depends on the angle that the straight line joining your position and the centre of the earth makes with the prime meridian(latitude perpendicular to equator).
the formula for g is
g' = g-(w)^2 *r [w=angular speed]
=g-(w)^2*Rsin(theta) [R=radius of earth]
now for equator theta=90 =>sin(theta)=1
so, value of g'= g- (w)^2 *R
and for poles theta=0 =>sin(theta)=0
so,g' =g-0
Therefore value of g is greater at poles..
Hope it helps you buddy
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