To find out how far the dolphin swims, you can use the formula:
\[ \text{Distance} = \text{Speed} \times \text{Time} \]
Given:
- Speed = 1.85 m/s
- Time = 6.0 s
Now, plug in the values:
\[ \text{Distance} = 1.85 , \text{m/s} \times 6.0 , \text{s} \]
Calculating that gives:
\[ \text{Distance} = 11.1 , \text{m} \]
Since 11.1 m is not an option listed, it appears there might be an error in calculation or in understanding the available options. The closest option (if we round down) would be 11 m.
Therefore, the answer is:
a. 11 m