June set up an experiment to find out how the speed of a ball affects the distance moved by an empty box.

The ball rolled from point X and hit the empty box. The distance moved by the empty box was measured and recorded in the table shown below. The experiment was repeated, changing only the speed of the ball each time.

Speed of ball (cm/s)Distance moved by the box (cm)

Based on the results above, which one of the following conclusions is correct?

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