Newton's second law is a major part of mechanics. however, it does have its limitations. under what condition does the second law not apply. explain when this would happen.

Newton's second law only applies in an inertial frame of reference.

Explanation:

An inertial frame of reference is not accelerating. An observer on the ground is in an inertial frame of reference. He can use Newtons laws to describe a rocket launch. The person inside the rocket is not in an inertial frame of reference when the rocket is launched. Newtons laws can not be used by the person inside the rocket.

like poles repel so keep pushing north to north and repels funny to see this

true tan speed = ang vel x radius