The average speed of the ball at the given time of motion is 0.25 m/s.
The given parameters:
The average speed of the ball at the given time of motion is calculated as follows;
[tex]v = \frac{tota \ distance}{Total \ time} \\\\V = \frac{9}{18 + 18} \\\\V = 0.25 \ m/s[/tex]
Thus, the average speed of the ball at the given time of motion is 0.25 m/s.
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