A coin is dropped at the North Pole and In Singapore.At which place does the coin drop faster?

Question

Considering the fact that it was a fair test.
And do explain why

Answer 1

It will drop faster at the North Pole. Assuming the earth's gravity is the same in both places, Singapore is near the equator, and the centrifugal force from earth's rotation acts against the force of gravity. Therefore the effective value of g in Singapore is less than that at the north pole.

EDIT: This from Wikipedia:

"Gravity is weaker at lower latitudes (nearer the equator), for two reasons. The first is that in a rotating non-inertial or accelerated reference frame, as is the case on the surface of the Earth, there appears a 'fictitious' centrifugal force acting in a direction perpendicular to the axis of rotation. The gravitational force on a body is partially offset by this centrifugal force, reducing its weight. This effect is smallest at the poles, where the gravitational force and the centrifugal force are orthogonal, and largest at the equator. This effect on its own would result in a range of values of g from 9.789 m·s−2 at the equator to 9.832 m·s−2 at the poles.[1]

The second reason is that the Earth's equatorial bulge (itself also caused by centrifugal force), causes objects at the equator to be farther from the planet's centre than objects at the poles. Because the force due to gravitational attraction between two bodies (the Earth and the object being weighed) varies inversely with the square of the distance between them, objects at the equator experience a weaker gravitational pull than objects at the poles.

In combination, the equatorial bulge and the effects of centrifugal force mean that sea-level gravitational acceleration increases from about 9.780 m/s² at the equator to about 9.832 m/s² at the poles, so an object will weigh about 0.5% more at the poles than at the equator."

http://en.wikipedia.org/wiki/Earth%27s_gravity

Answer 2

They will drop at the same rate, because both the north pole and the island of Singapore are exactly at sea level, and the water of the sea seeks an equipotential surface. Dropping the coin from a given height above local sea level ensures that the effective value of g is identical in both spots.

Answer 3

The coin at the North Pole will fall faster, it is closer to to the centre of gravity due to the shape of the Earth.

Answer 4

okay both would drop at same rate because of gravity effects same in both places