Cuerpo u objetos que juntos se usan para describir la posición o el movimiento de un móvil. a) punto de referencia

b) marco de referencia

c) movimiento relativo

The best answer is (a) which is universal law is in effect at all times. it is constantly at play in everything we do and governs our lives. it is also important to note that universal law applies to not only everything on earth, but everything in the universe as well, which is another reason why it is in effect at all times.

The object's initial distance above the groundthe object's initial velocity