(a) What is the angular speed `omega` about the polar axis of a point on Earth's surface at latitude `40^(@)N` ? (Earth rotates about that axis.) (b) What is the linear speed v of the point? What are ( c) `omega` and (d) v for a point at the equator?

Explanation

(a) `7.3xx10^(-5)rad//s`, (b) `3.5xx10^(2)m//s`, ( c) `7.3xx10^(-5)rad//s`, (d) `4.6xx10^(2)m//s`