Assume that the Earth is a sphere and that the force of gravity (mg) points precisely toward the center of the Earth. Taking into account the rotation of the Earth about its axis, calculate the angle between the direction of a plumb line and the direction of the Earth’s radius as a function of latitude. What is this deviation angle at a latitude of 45 deg.?

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Normally we consider a plumb bob to hanging directly toward the center of the Earth countering gravi... View the full answer