Question

1. which of the following is not one of newtons laws of motion? cross this one out. label the remaining laws of motion (i, ii or iii) and give the corresponding equation.

a. to every action there is always opposed an equal reaction: or the mutual actions of two bodies upon each other are always equal, and directed to contrary parts.
b. that which was, is, and always will be. that which will be, has been, and always was. that is, matter can neither be created nor destroyed.
c. the alteration of motion is ever proportional to the motive force impressd; and is made in the direction of the right line in which that force is impressd.
d. every body persists in its state of being at rest or of moving uniformly straight forward, except insofar as it is compelled to change its state by force impressed.

Explanation:

Newton's three laws of motion are: First - Law of Inertia (d), Second - $F = ma$ (c), Third - Action - Reaction (a). The statement in b is about the law of conservation of matter, not related to Newton's laws of motion.

Answer:

Cross out b.
a. Third Law, $F_{12}=-F_{21}$
c. Second Law, $F = ma$
d. First Law, $F_{net}=0$ implies $v =$ constant (or $v = 0$ if initially at rest)