Abstract
So far we have stated that, up to a good approximation, the Earth can be considered an inertial reference system. Strictly speaking, it is obviously not an inertial reference frame as it rotates about its axis, orbits around the Sun, etc. In this chapter we shall deduce the expression for the fictitious forces that appear in non-inertial reference systems by using two approaches, one of them based in Euler’s angles (introduced in Appendix F) and a second one, which can be considered more heuristic. We shall then apply these generic results to a set of simplified problems regarding the trajectory and motion of physical systems on the surface of the Earth. We will also analyse in detail the effects of both the Coriolis and the centrifugal force, avoiding any possible confusion about the magnitude of both effects.
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