Friday 18 May 2012

A flying squid (family Ommastrephidae) is able to “jump” off the surface of the sea by taking water into its body cavity and then ejecting the water vertically downward. A 0.85-kg squid is able to eject 0.30 kg of water with a speed of 20 m/s. (a) What will be the speed of the squid immediately after ejecting the water. (b) How high in the air will the squid rise? 

The Japanese Flying Squid, otherwise known as Todarodes pacificus, is a invertebrate, and a member of the phylum mollusca, class cephalopoda, and family ommastrephidae. This animal lives in the Northern Pacific ocean. The squid has a siphon–a muscle which takes in water from one side, and pushes it out the other side; in other words: jet propulsion. Squids have ink sacs, which they use as a defense mechanism against possible predators. Squid also have three hearts.