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What if you tied a rope around the earth?

Posted on August 18, 2022 by Author

What if you tied a rope around the earth?

Suppose a rope was tied taut around the Earth’s equator. It would have the same circumference as the Earth (24,901.55 miles). Despite the enormous size of the Earth, and the 1 foot gap around the entire circumference, the rope would have to be lengthened by a mere 2π feet, or roughly 6.28 feet.

What length of rope would you need to wrap around Earth’s equator exactly once?

So for us the answer is 5.73 inches. (X is 36 inches.) In an interview a bit less than 6 would be sufficient. Basically it’s 3 feet or 36 inches, over 2π.

What is the circumference of the earth?

24,901 mi
Earth/Circumference

How big is the world?

3,958.8 mi
Earth/Radius

How many feet is it around the world?

The circumference of the Earth is 131,477,280 feet around; or 24,901 miles.

What is on the equator?

Theequatorpasses through 13 countries: Ecuador, Colombia, Brazil, Sao Tome & Principe, Gabon, Republic of the Congo, Democratic Republic of the Congo, Uganda, Kenya, Somalia, Maldives, Indonesia and Kiribati.

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How do we measure the Earth?

Earth’s circumference is the distance around Earth. Measured around the Equator, it is 40,075.017 km (24,901.461 mi). Measured around the poles, the circumference is 40,007.863 km (24,859.734 mi). Measurement of Earth’s circumference has been important to navigation since ancient times.

How many km2 is the earth?

196.9 million mi²
Earth/Surface area

How many feet is the equator?

Earth’s Diameter at the Equator: 7,926.28 miles (12,756.1 km) or 41850758.4 ft.

How many feet around is the sun?

Explanation: Answer is 491040000000 feet.

How far would a rope raise the earth above the Earth?

The idea is to imagine the earth is a cube or just a square really and ask yourself if you added, say 8 feet, to the rope, how far would that raise it above the square earth? From the diagram it’s pretty clear it’s one foot. From there it’s not hard to believe that adding 3 feet to a rope around the actual earth would raise it almost 6 inches.

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Why can’t we raise the rope by so much?

The problem is that the length added to the rope seems so trivial compared radius of the earth it just seems implausible that it would raise the rope by so much. Consider the following diagram:

What is the tension of a rope?

In vertical pulling of any object tied with the rope, the tension will be the sum weight of the object and the net weight of rope if the mass of rope is quite comparable with object. The second case is the horizontal pulling of rope (or with some inclination) with an object on the other end and the object is in contact with some surface.

What is the radius of the rope 3 feet?

Let’s call X the amount we add to the length of the rope, in our case 3 feet. Additionally we know the relationship between the circumference of a circle and it’s radius is generally given by R = C/2π that is the only formula you need to know to solve this puzzle. Plus some basic algebra. So for us the answer is 5.73 inches. (Xis 36 inches.)

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