If every human on Earth simultaneously jumped from a one-meter height and hit the ground at the same time, it would not have a significant impact on the planet as a whole. Here's why:
Mass of Humans: While there are over 7 billion people on Earth, the mass of an individual human is relatively small compared to the total mass of the planet. The combined mass of all humans is about 0.06% of Earth's total mass. Therefore, the collective impact of all humans jumping simultaneously would be negligible in terms of altering Earth's overall motion or structure.
Conservation of Momentum: When humans jump and hit the ground, the force exerted on the Earth is equal and opposite to the force the Earth exerts on them, as dictated by Newton's third law of motion. Since the mass of Earth is immensely larger than the combined mass of humans, the resulting motion or displacement of the planet would be incredibly tiny and practically imperceptible.
Scale and Stability of Earth: Earth is a massive and stable object, with a diameter of approximately 12,742 kilometers and a solid, rocky interior. The force generated by human jumps would be distributed over the entire surface of the planet, minimizing its impact further. Earth's immense size and gravitational attraction make it resistant to being significantly affected by human activities on such a scale.
In summary, due to the vast difference in mass between humans and the Earth, the simultaneous jumping of every person from a one-meter height would not have any noticeable impact on the planet as a whole. Earth's size, mass, and stability make it resilient to such small-scale forces.