Answer:
Time taken by the shark to swim 42 meters = 3.5 seconds
Step-by-step explanation:
Given:
Average velocity at which shark travels = 12 m/s
Distance the shark travels = 42 m
To find time taken by shark to swim 42 meters at the given velocity.
Solution:
The time can be calculated as:
![Time taken =(Distance )/(Velocity)](https://img.qammunity.org/2020/formulas/physics/high-school/7gry377oaynyzmq7yb08lhss7m88xzf4a2.png)
Plugging in the given values, we have:
![Time taken = (42\ m)/(12\ m/s)](https://img.qammunity.org/2020/formulas/physics/high-school/ydkoyprsu4u3z0khsy2zyue04r94yztet8.png)
Simplifying fractions.
![Time taken = (7)/(2)\ s](https://img.qammunity.org/2020/formulas/physics/high-school/2pr03dzt9adetlxpwaqzmtsstzmqcrlma8.png)
∴
(Answer)