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Homework Help: A 50-kg object was dropped from a height of 2 meters from water level

  1. Dec 18, 2011 #1
    1. The problem statement, all variables and given/known data
    A 50-kg object was dropped from a height of 2 meters from water level of tank. The open water-tank has a hole 3 meters below water's surface. area of water tank is 1.5 sq m and diameter of hole is 2 sq mm. What is the max speed of water exiting the tank if the mini impact time is .02 seconds?


    2. Relevant equations

    What is the equation?

    3. The attempt at a solution
    What is the equation?
     
  2. jcsd
  3. Dec 18, 2011 #2

    Simon Bridge

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    Re: equation

    This is not one of those cases where there is a standard equation - you have to derive it from the physics.

    What kinds of physics do you think should apply here?

    Note: I don't know what the falling mass is supposed to do.
    Does it hit the surface of the water?
    If so, does it float or sink?
    If not: did it start below water-level, or is it next to the tank?
     
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