A city on planet Earth has a latitude of 38.5degrees south.

You may assume that the Earth is a perfect sphere of radius RE=6,380,000m.

You may assume that the rotational period of the Earth is 23hours, 56minutes.

Considering Earth’s rotation only, i.e. ignoring the effects of the orbital motion of the earth and the motion of the solar system

(a)	What is the instantaneous speed of the city with respect to a stationary observer in space?

 

(b)	What is the instantaneous magnitude of acceleration of the city with respect to a stationary observer in space?