A ${1\mathrm{.}75}^{\text{'}\text{'}}$ in diameter hose carries water at a speed of $8\mathrm{.}0f\frac{t}{s}.$ A nozzle at the end reduces the flow to ${0\mathrm{.}75}^{\text{'}\text{'}}$ in diameter. What is the force that the water is exherting onto the nozzle? The static pressure in the hose is $p=50.$ The density of water to be $=1\mathrm{.}938$ slug$/$ft ${?}^3.$ See Example $15\mathrm{.}16.$