Physics

A squid can propel itself by taking water into its body and then expelling it. A 0.60 kg squid expels 0.30 kg of water with a velocity of 20 m/s [S]. What is the speed of the squid immediately after expelling the water?

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asked by Nataly
  1. momentum is conserved ... Mw * Vw = Ms * Vs

    the squid expels water equal to half of its own mass

    so the squid's velocity will be half of the water's velocity

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    posted by R_scott

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