A red ball was rolling at a speed of 5 m/s. It hit a blue ball that was sitting still. The balls are the same except for their c
olor. What happened to the blue ball once it was hit? A. It rolled away at more than 5 m/s.
B. It stayed sitting still.
C. It rolled away at 5 m/s.
D. It rolled away at less than 5 m/s.
