Question

A dolphin jumped above the surface of the water it reached an altitude of 3.5 meters above the surface of the water and then 10 meters below the surface of the water it went from its highest point above the water to its lowest depth in 12.5 seconds

Answer 1

To find the average velocity of the dolphin during this time, we need to calculate the total change in position and divide it by the total time taken.

The total change in position can be calculated by adding the altitude above the water and the depth below the water:

Total change in position = 3.5m + (-10m) = -6.5m

Note that the negative sign indicates that the dolphin's final position is 6.5 meters below its initial position.

The total time taken is given as 12.5 seconds.

Average velocity = Total change in position / Total time taken
Average velocity = -6.5m / 12.5s = -0.52 m/s

Therefore, the average velocity of the dolphin during this time is approximately -0.52 m/s.