Question

Earth rotates on its axis once every 24 hours, so that objects on its surface execute uniform circular motion about the axis with a period of 24 hours. Consider only the effect of this rotation on the person on the surface. (Ignore Earth's orbital motion about the Sun.)

Answer 1

Answer:

The effect of this rotation on the person on the surface is the sky is moving, like an apparent diurnal motion.

Explanation:

For an observer at a fixed position on Earth, the rotation of earth makes it appear as if the sky is revolving around the earth. In other words, if a person is standing for long enough in a field at night, it looks like the sky is moving, not the person. This motion is called "apparent diurnal motion."

Diurnal means having to do with a day, in a sense of a 24- hour period.