Question

which of the following is an example of newtons second law of motion? a a soccer ball rolling down a hill b a person pushing a heavy box across the floor c a rocket launching into space

Explanation:

Newton's second - law of motion states that the net force acting on an object is equal to the mass of the object times its acceleration ($F = ma$). When a person pushes a heavy box across the floor, the force applied by the person causes the box to accelerate (if the force overcomes the frictional force). A soccer ball rolling down a hill is more related to gravity and Newton's first law (inertia) before considering the acceleration due to gravity as a force in a more complex analysis. A rocket launching into space is an example of Newton's third - law (action - reaction).

Answer:

B. A person pushing a heavy box across the floor