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Answer:
ALL THAT'S WRITTEN BENEATH MY ANSWER IS WRONG!
The question is what is Earth's "ROTATION SPEED". The former answer below discusses what an individual's "TANGENTIAL SPEED" or "linear speed" is which is based on the radius to the axis of rotation.
ROTATIONAL SPEED is the measure of the number of rotations per unit of time. Therefore the broad value is the earth rotates once per 24 hours. A valid rotation speed could be 1 rotation/day or 0.042 rotations per hour or .000694 rotations per minute or "rpm". Rotational speed is independent of any radius. Rotational speed is the same for all objects located on the Earth.
Just as on a bicycle wheel that is spinning. Locations further from the axis will have greater TANGENTIAL speed. But they all complete one ROTATION at the same time.
If you're wanting to know how fast YOU'RE going in distance/time while on the Earth, then yes, you'd need to know the radius of the Earth at your specific latitude.
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That depends on where on Earth you are standing. At the poles, the Earth hardly spins at all, but as you travel towards the equator, the rotational speed picks up. This makes sense -- as the circumference of a circle increases, a single point along it has to travel faster to complete a revolution in the same amount of time.
The rotational speed of the Earth at the equator is about 1,038 miles per hour. The atmosphere at the equator is also slightly thicker due to rotation, and you weigh slightly less. At mid-latitudes, the speed of the Earth's rotation decreases to 700 to 900 miles per hour.
If the Earth were to stop spinning suddenly, the atmosphere would still be zipping along nicely at around 1,000 miles an hour. As a result, everything not attached to bedrock would pretty much be scoured clean.
If you have any more questions about the Earth's rotation, check out this nifty Ask a Space Scientist page. Looking for a cosmic perspective on how fast the earth is moving? Remember that all questions about motion or speed are only complete with an appropriate frame of reference.
The question is what is Earth's "ROTATION SPEED". The former answer below discusses what an individual's "TANGENTIAL SPEED" or "linear speed" is which is based on the radius to the axis of rotation.
ROTATIONAL SPEED is the measure of the number of rotations per unit of time. Therefore the broad value is the earth rotates once per 24 hours. A valid rotation speed could be 1 rotation/day or 0.042 rotations per hour or .000694 rotations per minute or "rpm". Rotational speed is independent of any radius. Rotational speed is the same for all objects located on the Earth.
Just as on a bicycle wheel that is spinning. Locations further from the axis will have greater TANGENTIAL speed. But they all complete one ROTATION at the same time.
If you're wanting to know how fast YOU'RE going in distance/time while on the Earth, then yes, you'd need to know the radius of the Earth at your specific latitude.
That depends on where on Earth you are standing. At the poles, the Earth hardly spins at all, but as you travel towards the equator, the rotational speed picks up. This makes sense -- as the circumference of a circle increases, a single point along it has to travel faster to complete a revolution in the same amount of time.
The rotational speed of the Earth at the equator is about 1,038 miles per hour. The atmosphere at the equator is also slightly thicker due to rotation, and you weigh slightly less. At mid-latitudes, the speed of the Earth's rotation decreases to 700 to 900 miles per hour.
If the Earth were to stop spinning suddenly, the atmosphere would still be zipping along nicely at around 1,000 miles an hour. As a result, everything not attached to bedrock would pretty much be scoured clean.
If you have any more questions about the Earth's rotation, check out this nifty Ask a Space Scientist page. Looking for a cosmic perspective on how fast the earth is moving? Remember that all questions about motion or speed are only complete with an appropriate frame of reference.
First answer by ID1153653797.
Last edit by Ghostsofcanton.
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