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Fluids Mechanics, Momentum

1. Homework Statement
Please see attached file for problem statement

2. Homework Equations
ΣM = Min - Mout = 0

3. The Attempt at a Solution
I have tried using the equation of conservation of momentum on this problem but I'm getting stuck at how the viscous force of the liquid is playing a role in this problem. In addition, would I take in affect that the force of the liquid that is applied on the cone is applied throughout the whole area of the cone, therefore, meaning that I need to find the area of the surface of the cone that the liquid is acting upon?
 

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Simon Bridge

Science Advisor
Homework Helper
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You need to use calculus to do the change in momentum.
 
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Are you learning about macroscopic momentum balances in your course? In your relevant equation, does M stand for mass or for momentum?
 

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