Given
Time taken, t=42 sec
The distance travelled is d=45 m
To find
The swimmer's velocity
Explanation
The velocity is the ratio of the distance to time
Thus,
[tex]\begin{gathered} v=\frac{d}{t} \\ \Rightarrow v=\frac{45}{42}=1.1\text{ m/s} \end{gathered}[/tex]The velocity is directed from west to east.
Conclusion
The swimmer's velocity is
C. 1.1 m/s east
