A soccer ball is at rest at the edge of a tall cliff. Then the ball is kicked forward off the cliff. How does the ball move?
a. The ball's forward motion ends at the edge of the cliff, where it falls straight down.
b. The ball's forward motion continues briefly beyond the edge of the cliff, and then it falls straight down.
c. The ball keeps moving forward and falls downward at the same time.
d. The ball falls downward in a spiral-shaped path.