Question

a ball is dropped from rest from the top of a building. what force is responsible for the downward motion of the ball? the force of gravity the force of tension the normal force the pushing force

Explanation:

Gravity is the force that pulls objects towards the Earth's center. When a ball is dropped, it falls due to the gravitational pull. Tension is related to stretched - out ropes or strings, the normal force acts perpendicular to a surface, and a pushing force requires contact and an active push. None of these other forces are responsible for the ball's downward motion when dropped.

Answer:

the force of gravity