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

[grave]

Homework Statement

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?

Homework Equations

What is the equation?

The Attempt at a Solution

What is the equation?

 

[Simon Bridge]

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?