Question

a barracuda can swim at a maximum speed of 10 meters per second. if it swims away from a nearby shore at half of its top speed, how long will it take the barracuda to swim 40 meters?
write your answer as a whole number.
seconds
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Explanation:

Step1: Find the swimming speed

The top speed is 10 m/s, half of it is $\frac{10}{2} = 5$ m/s.

Step2: Use time formula

Time $t=\frac{\text{distance}}{\text{speed}}$, distance is 40 m, speed is 5 m/s, so $t = \frac{40}{5}=8$.

Answer:

8