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Homework Help: Total Velocity

  1. Jun 8, 2009 #1
    1. The problem statement, all variables and given/known data
    5. A sea hawk flying horizontally at a speed of 15 m/s drops a shellfish from a height of 30 m. At what speed does the shellfish hit the ground? Neglect air resistance (drag).

    2. Relevant equations

    vf2 = vi2 + 2ah

    3. The attempt at a solution

    I got 24.3 which was one of the answers and when i emailed the professor he said that that was the vertical velocity and I need to look for total velocity...well the answer is 28.5 m/s and I don't understand how that was arrived.
  2. jcsd
  3. Jun 8, 2009 #2


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    Homework Helper

    You could use conservation of energy here I believe.

    Also, the horizontal velocity would be the same throughout.
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