The tank in Problem 66 is 6 in. in diameter and contains water at a depth of

Question:

The tank in Problem 66 is 6 in. in diameter and contains water at a depth of $3 \mathrm{ft}$. On the side of the tank near the bottom is a $1.5 \mathrm{in}$. ID outlet to which is attached a ball valve, which has a loss coefficient of 1.2. When the valve is opened, the water flows out in a horizontal stream. Calculate

(a) The flow rate of the water (in gpm).

(b) The thrust exerted on the tank by the escaping water, and the direction that the tank will move. If the diameter of the outlet and valve are increased, will the thrust on the tank increase or decrease? Why?

Problem 66

Consider the "tank on wheels" shown in Figure P5.66. Water is draining out of a hole in the side of the open tank, at a rate of $10 \mathrm{gpm}$. If the tank diameter is $2 \mathrm{ft}$ and the diameter of the hole is 2 in., determine the magnitude and direction of the force transmitted from the water to the tank.

Figure P5.66