Find the centripetal accelerations at each of the followingpointsdue to the rotation of Earth about its axis.

(a) a point on the Equator of Earth
1 m/s²
(b) the North Pole
2m/s²

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Beverley SmithLv2

28 Aug 2019

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Because of Earth’s rotation about its axis, a point on the equator has a centripetal acceleration of 0.034 0 m/s², whereas a point at the poles has no centripetal acceleration, (a) Show that, at the equator, the gravitational force on an object (the object’s true weight) must exceed the object’s apparent weight, (b) What are the apparent weights of a 75.0-kg person at the equator and at the poles? (Assume Earth is a uniform sphere and take g = 9.800 m/s².)

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Because of Earth’s rotation about its axis, a point on the equator has a centripetal acceleration of 0.034 0 m/s², whereas a point at the poles has no centripetal acceleration, Show that, at the equator, the gravitational force on an object (the object’s true weight) must exceed the object’s apparent weight.

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