Rope Around The Earth Add 10 Feet

You add an extra 3 feet to the length. Divide again by pi to get the earth s radius 6 370km. Suppose you tie a rope tightly around the earth s equator.

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All around the earth the rope is raised up uniformly as high as is possible to make it tight again.

Rope around the earth add 10 feet.

3 foot radius 20 925 722 88. 15cm that s how far off the ground we re lifting the string remember out of 6 370km is close. Student answer form blackline master rope around the world you have a piece of rope that just fits around the earth. If you put 1 metre high sticks right around the equator and lay the rope on.

Multiply by 2 to get. Divide by 2 pi to get. 40 000 divided by 2 is 20 000. In fact this brain teaser requires neither an exact measurement of the earth s circumference which in fact varies by many kilometers depending on which circumference you measure nor even an assumption that the earth has a circular cross sect.

Let s say you pull the rope as tight as it will go and then add back 6 feet of slack before tying the knot. 3 foot diameter 41 851 445 75 feet. If the extra rope is distributed evenly around the globe will there be enough space between the rope and the surface of the earth for a worm to crawl under. Now let us tie a rope tightly around its equator.

Suppose you tie a rope around the earth at the equator circumference approx. Suppose you tie a rope tightly around the earth s equator. Subtract larger of the two diameters from the smaller. The radius of earth is 6371 km approx.

You add an extra 3 feet to the length. All around the earth the rope is raised up uniformly as high as is possible to make it tight again. Divide that by 2 to get how high off the ground the rope is all the way around the earth. Rope around the earth consider the earth to be a perfect sphere.

3 footcircumference 131 480 194 53 feet. Now untie the rope and add. Difference of diameters is 0 95 feet.

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