Equator

Suppose that tourist went on foot over the Globe equator. How many meters more track made ​​his hat on his head as the shoes on your feet? The radius of the earth is 6378 km and height of the tourist is 1.7 m.

Correct result:

x =  10.7 m

Solution:

$x=x_1-x_2=2\pi (R+1.7)-2\pi R=2\pi \cdot 1.7=10.7\text{ m}$

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