Question

The earth has a radius of 6.38 106 m and turns on its axis once every 23.9 h.
A. What is the tangential speed (in m/s) of a person living in Ecuador, a country that lies on the equator?
(b) At what latitude (i.e., the angle θ in the drawing) is the tangential speed two-thirds that of a person living in Ecuador?

Answer 1

angular speed= 2PI/day

convert that to radians/sec

Then tangentialspeed= above ang;ular speed times radius

for any other latitude, multipy all that by cosine Latitude

Answer 2

23