Question

when the soccer ball is moving through the air to the right, what is the main force that is acting on the ball, causing it’s movement to the right, to slow down? (1 point)
○ friction from contact with the ground
○ gravitational force
○ air resistance (drag or fluid friction)
○ normal force

Explanation:

1. Analyze "Friction from contact with the ground": The ball is moving through the air, so contact with the ground is not the main factor slowing it down horizontally. Eliminate this option.
2. Analyze "Gravitational Force": Gravity acts vertically (pulling the ball down), not horizontally to slow its rightward motion. Eliminate this option.
3. Analyze "Air Resistance (drag or fluid friction)": When an object moves through a fluid (like air), the fluid exerts a resistive force opposite to the direction of motion. For the soccer ball moving right through air, air resistance acts leftward, slowing its rightward speed. This fits.
4. Analyze "Normal Force": The normal force acts perpendicular to surfaces (e.g., upward from the ground if the ball were on it, or from air molecules but not in a way to slow horizontal motion directly). Eliminate this option.

Answer:

Air Resistance (drag or fluid friction)