Answer: So, his cruising speed s = 50 feet per second .
Step-by-step explanation:
Since we have given that
Total distance covered by a personal watercraft towards a dock = 3050 feet
Time taken to travel = 55 seconds
According to question, he began to slow down 300 feet from the dock , so, at this speed he traveled
[tex]3050-300=2750[/tex]
Speed will be
[tex]Speed=\frac{\text{ Remaining distance }}{time}[/tex]
[tex]\frac{2750}{55}=50[/tex]
So, his cruising speed 's' = 50 feet per second .