Consider the following system, where you want to determine the force, F, holding the fixed plate (the black thick line). The following 5 pictures contain different control volumes (the red

dashed lines) for this system that were submitted on midterm 2. Select the best control volume of the 5 to use to determine F for the system. For each "poorer choice" control volume, you need to explain why it is a poorer choice (give as many valid reasons as you can).