If earth were to rotate faster than its ...

If earth were to rotate faster than its present speed, the weight of an object

increases at the equator but remain unchanged at poles

decreases at the equator but remain unchanged at the poles

remain unchanged at the equator but decreases at the poles

remain unchanged at the equator but increases at the poles

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If earth were to rotate on its own axis such that the weight of a person at the equator becomes half the weight at the poles, then its time period of rotation is (g = acceleration due to gravity near the poles and R is the radius of earth) (Ignore equatorial bulge)

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If the speed of rotation of earth about its axis increases, then the weight of the body at the equator will

How does the weight of an object vary with respect to mass and radius of the earth. In a hypothetical case, if the diameter of the earth becomes half of its present value and its ,mass becomes four times of its present value, then how would the weight of any object on the surface of the earth be affected?

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