A fish rising vertically to the surface of water in a lake uniformly at the rate of 3 m/s observes a king-fisher (bird) diving vertically down at a rate of 11 m/s vertically above it. If the refractive index of water is (4/3), find the actual velocity of the dive of the bird.

While scuba diving, Kendrick rose 8.1meters directly toward the water's surface at a constant velocity. He moved that distance in 1.5minutes, and he was passed by a jackfish swimming south at 15 meters per minute. What was Kendrick's velocity?

A seagull was 120meters west of a pier, flying east at a constant velocity. In 4seconds, it flew one-third of the way to the pier. What was the seagull's velocity?

While on a boat tour along the coast of the Atlantic Ocean, Leo sees a great white shark jump out of the water. The shark travels upward with a velocity of 18 feet per second before splashing back down into the water.To the nearest tenth of a second, how long is the shark in the air?Hint: Use the formula h=–16t2+vt+s. secondsSubmit

A fish in water sees an object which is 33 cm above the surface of water. The apparent height of the object as noticed by the fish is [Take  nw=43𝑛𝑤=43 ]

A 5-kg big fish is swimming at 1 m/s towards a 1-kg small fish at rest as shown in Figure 4. What is the velocity of the larger fish immediately after swallowing the smaller fish for lunch? Ignore the effects of water resistance (Hewitt, 2015).