Water at 60˚f flows through a nozzle that contracts from a diameter of 3 in. to 0.5 in. the pressure at section 1 is 2500 psfg, and atmospheric pressure prevails at the exit of the jet. calculate (a) the speed of the flow at the nozzle exit and (b) the force required to hold the nozzle stationary. neglect weight.

Let's start by getting the expressions for the speed that allow us to get the equations correctly,

Then,

Replacing then

We then proceed to obtain the speed, from the previously given relationship,

So,

Where is the pressure in each section,

As section 2 is open, then and

a) The velocity at section 2 would be,

b) The discharge Q would be,

The force then is,

Solving,

the components of a vector are the parts of the vectors that are to each other.

b perpendicular

answer(20) psi;