Although the Earth is rotating, humans and other objects on its surface remain relatively stable due to the presence of several factors:
Inertia: Objects, including humans, tend to maintain their state of motion unless acted upon by external forces. This principle, known as inertia, means that objects on Earth's surface, including us, continue to move at the same speed and in the same direction as the Earth's rotation.
Gravity: Earth's gravity pulls objects towards its center. This gravitational force acts as a centripetal force, keeping objects on the surface from being flung off into space due to the Earth's rotation. Gravity counteracts the outward centrifugal force generated by Earth's rotation.
Friction: The interaction between our bodies and the Earth's surface creates friction. Frictional forces help to provide stability and prevent us from sliding or being displaced by the Earth's rotation. Friction between our feet and the ground, for example, allows us to walk or run without being significantly affected by the Earth's rotational motion.
It's worth noting that while we may not feel the Earth's rotation directly, its effects are observable in phenomena such as the apparent movement of celestial bodies, the rotation of the sky, and the day-night cycle. However, due to the relatively large size and mass of the Earth compared to our bodies, and the forces mentioned above, we remain stable and don't perceive the rotational motion on a personal level.