Q:
Don't be so quick to throw in the towel.
I worked through the example you linked, very similar (nearly identical, actually, but different values) to what I posed. I used my approach from above and calculated the same magnitude but opposite direction result as was provided. We both arrived...
Q:
I assumed a direction for F in my sketch. If I'd placed F pointing left on the control volume, then yes, my calculation would have it result as a numerically positive quantity but the interpretation remains the same: to hold the nozzle stationary, one exerts a force on the nozzle against the...
I see. If I were to allow an open reservoir to drain vertically into the same nozzle, now pointing towards gravity, I would have to pull the nozzle/funnel upwards against the direction of flow to keep it stationary. Now there's a gravitational effect, I'm aware, but because the system is open to...
This is not a homework problem, but an example that was demonstrated that I am confused about. Sorry if it should've been in the other forum nevertheless.
I understand the mathematics of the derivation and the result; but I'm having difficulty reconciling this against common experience with...