A ball falls vertically and bounces on the ground. The following statements are about the forces acting while the ball is in contact with the ground. Which statement is correct?
Correct answer: B. The force that the ball exerts on the ground is always equal in magnitude and opposite in direction to the force the ground exerts on the ball
- A. The force that the ball exerts on the ground is always equal to the weight of the ball
- B. The force that the ball exerts on the ground is always equal in magnitude and opposite in direction to the force the ground exerts on the ball
- C. The force that the ball exerts on the ground is always greater than the weight of the ball
- D. Both A and C
Explanation
When the ball hits the ground, it exerts a force on the ground, and by Newton's third law, the ground exerts an equal and opposite force on the ball. This contact force is greater than the ball's weight to accelerate it upward during the bounce. Therefore, the correct statement is B.
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