Question

Dave Kunst is the first person verified to
have completely circled the entire earth
on foot in 4 years. Let us assume he
traveled in a perfect circle around the
earth and the center of his circle is same
as the center of the earth. If he traveled
through a tunnel through the center of
the earth penetrating to other side of
earth at the same average speed, how
much time would he have taken?​

Answer 1

Answer:

don't know bro any other questions please