Why is gravity weaker at the equator




















Follow-up on this answer. Related Questions. Still Curious? I'm sure all countries do not have the same amount of gravitational force present because of it's relative position to the core or equator, so for my research I would like to know a few questions?

What is the specific acceleration of gravity force acting upon the United States? And, what is the specific acceleration of gravity force acting upon Argentina? How is the specific acceleration of these gravitational forces calculated relative to the effect it has on the people who reside there? That equation assumes you're at sea level, but if you want to account for the effect of altitude when you go up in a plane you can use this additional equation: r e is the Earth's mean radius 6, It uses antibodies It's not easy, as you have probably heard many Scientists like biologist E.

Bone-jarring tackles almost always make the highlight reel in a National Football League game. And those tackles happen We've all seen the videos on the news, the internet, and even social media of astronauts floating around inside their Skip to main content.

North Carolina Science Now. Category: Earth Science Published: January 7, Yes, you weigh less on the equator than at the North or South Pole, but the difference is small. Note that your body itself does not change. Rather it is the force of gravity and other forces that change as you approach the poles. These forces change right back when you return to your original latitude. In short, a trip to the equator is not a viable long-term weight-loss program.

Your weight is the combination of all the large-scale, long-term forces on your body. While the earth's gravity is by far the strongest large-scale force, it is not the only one. What you experience as "something pulling you down" is actually the total of all the forces and not just gravity.

The four dominant large-scale, long-term forces are:. Note that although earth's Coriolis force plays a major role in shaping hurricanes and ocean currents, since it is not a static force, it does not contribute to your overall weight. Also, additional forces appear when you ride a roller-coaster, an elevator, a swing, or another vehicle, but these forces are transient, so they do not contribute to your overall, long-term weight.

Finally, electromagnetic and nuclear forces are either too small-scale, or too short-term to contribute to your overall weight. For our purposes, we want to consider the forces that differ significantly at the equator versus the poles.

While the sun's gravity is strong enough to keep us and the earth in orbit, the sun's position relative to a spot on the equator versus the poles is constantly changing. As a result, averaged over a few days, the gravitational force of the sun on a spot on the equator is the same as the gravitational force of the sun on a spot on the poles.



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