300
You blow softly on a ball. The ball crosses the finish line in 8 seconds. You blow hard on the ball. The ball crosses the finish line in 3 seconds.
What happened when you blew hard on the ball?
A. the ball moved faster than when you blew softly.
B. the ball moved more slowly than when you blew softly.
C. the ball moved at the same speed as when you blew softly.
What is A. The ball moved faster than when you blew softly.