Dave Kunst is the first person verified to have completely circled the entire earth on foot which is 23,255
km, in 4 years. Let us assume he travelled in a perfect circle around the earth. Now he digs a tunnel
through the centre of the earth penetrating it to other side of earth. How much time approximately will it
take for him to go to the other side on foot?
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Answer:
1.27 years
Explanation: The distance travelled is 23255 km in 4years. Which gives that he travelled 5813.75 km per year. Let's keep it aside. If earth was a circle it's circumference would be 23255 km as given by calculating with circumference identify we get that radius is approximately 3700 km. So the diameter is 7400 km. As we calculated it's 5813.75 km per year. With that taking as a reference we can calculate by 7400/5813.75=*approximately 1.27 years.
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