Question

as a rocket burns fuel, it becomes lighter and accelerates faster. this demonstrates: newtons second law newtons third law newtons first law the law of conservation of energy 3 multiple choice 1 point in a system such as bumper cars or rockets, what do newtons laws eliminate all external forces. only describe the motion of one object. measure only the strength of gravity.

Explanation:

Newton's Second Law states that force equals mass times acceleration ($F = ma$). As a rocket burns fuel, its mass decreases. With a constant - thrust force, according to the law, its acceleration increases. Newton's First Law is about an object's inertia, Newton's Third Law is about action - reaction pairs, and the Law of Conservation of Energy is about energy transformation and conservation, not directly related to the mass - acceleration relationship here.

Answer:

Newton's Second Law