Suppose that an object is attached to a spring balance on the Earth's surface and Earth's speed of rotation is gradually increased. What effect, if...

Suppose that an object is attached to a spring balance on the Earth's surface and Earth's speed of rotation is gradually increased. What effect, if any, will this have on.
i) the gravitational attraction between the object and the Earth.
ii) the reading of the spring balance.

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i) The gravitational attraction will not change and depends only on the mass and its distance from the centre of the Earth.
ii) The spring balance would read less.With increasing speed of rotation of the Earth, more gravitational force is needed to provide the centripetal force. The object's weight, which is the difference between the total gravitational force and the centripetal force is therefore less.

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sharon kalunda answered the question on May 31, 2019 at 10:28

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