Question

a ball rolls across a gym floor until it slows and stops. what force caused the ball to stop? gravity net force = 0 inertia friction

Explanation:

Friction is a force that opposes motion. When the ball rolls on the gym - floor, the frictional force between the ball and the floor acts against the ball's motion, causing it to slow down and eventually stop. Gravity acts vertically downwards and doesn't directly oppose the horizontal motion of the ball. Inertia is a property of matter, not a force that causes the ball to stop. A net - force of 0 would mean the ball would continue in its state of motion (constant velocity or at rest) according to Newton's first law, not stop.

Answer:

Friction