The third law of Newtonian Physics is the law of action

reaction forces. In inertial frame of references, it can be

proved that it is a pair of forces in opposite direction with

the same magnitude, the only difference is the direction,

they appear and disappear at the same times.

In practical applications in the inertial reference frames, there are

some confusion conditions that violate this law, as in the case of

various circular motions of objects. Not all of these motions obey

this law as people usually might think.