I Want more Ribbon!!!

Suppose u take a long ribbon and wrap it tightly around the Earth at its equator.For this,u require a ribbon 40,070 km long.now u raise the ribbon from the surface of the Earth by 1 m.How much more ribbon would u require?Remember,the ribbon is raised not at one point on the Earth,but all around it equally.choose your answer: a: more than 1000 km b: more than 5000 km c: less than 10 km

I HOPE YOU CAN ALSO GIVE THE PRECISE ANSWER!BEST OF LUCK!

Note by Pgv Vishal
5 years, 3 months ago

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1 vote

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Way less ribbon than you might think.

Adam Silvernail - 5 years, 3 months ago

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the answer is C and the precise answer is 0.00628 km(pi=3.14)

Tan Li Xuan - 5 years, 3 months ago

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6.28318 km is my answer, so the answer is c

Explanation: You take 40070 and divide it by pi(i used 3.14159) and get 12754.687912

and you add 2

so you get 12756.687912

and you multiply it by pi

and you get 40076.28318

subtract 40070

you get 6.28318

Bob Yang - 5 years, 3 months ago

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First of all, you should be adding 2 m, not 2 km. Secondly, the answer is independent of the radius of the earth, making it the same for all circular object in the universe. Neat huh?

Adam Silvernail - 5 years, 3 months ago

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well adam u r right on your grounds,but can u give the precise answer?

Pgv Vishal - 5 years, 3 months ago

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i am sorry,its not correct

Pgv Vishal - 5 years, 3 months ago

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