Question

a free - fall ride accelerates downward. which law best explains why acceleration increases as mass decreases (with constant force)?
newton’s second law
law of gravity
newton’s third law
newton’s first law

Explanation:

Newton's Second Law is expressed as $F = ma$ (force equals mass times acceleration). When force $F$ is constant, acceleration $a$ is inversely - proportional to mass $m$. So as mass decreases, acceleration increases. The Law of Gravity describes the gravitational force between two masses. Newton's Third Law is about action - reaction pairs, and Newton's First Law is about inertia.

Answer:

Newton's Second Law