Question

read the text below and answer the following question. a soccer player kicks a stationary ball across the field. later, the player stops the ball with their foot. what does this demonstrate about the forces acting on the ball? a the player is applying an unbalanced force to change the balls state of motion. b the forces on the ball are balanced, so it will not move. c the players action will have no effect on the ball. d the ball will instantly stop on its own due to friction.

Explanation:

When the player kicks the ball, an unbalanced force is applied (as per Newton's first law, an object at rest stays at rest unless acted upon by an external force). When the player stops the ball with their foot, they are also applying an unbalanced force to change the ball's state of motion (either from moving to rest). Options B and C are incorrect because the player's action does have an effect (applies a force). Option D is wrong as the ball won't instantly stop on its own (friction is a force but doesn't act instantaneously to stop it right away without the player's foot - the player's foot is a more immediate unbalanced force here).

Answer:

A. The player is applying an unbalanced force to change the ball's state of motion.