A jet of water (density of $1000$ $kg/m^3$) from a nozzle travels in the $x$ direction, initially along the surface of a vane. A short distance later, the vane curves downward and the jet is deflected through an angle of $60^{\circ}$. The jet initially has a mean velocity of $U_0$ $=$ $30$ $m/s$ and it leaves the vane with a mean velocity of $U_1$ $=$ $25$ $m/s$. If the discharge rate from the nozzle is $0.8$ $kg/s$, calculate the direction of the resultant force on the vane (if the vane is stationary). (Measure the angle counter-clockwise from the x-axis.)

A. 0 degrees
B. 30 degrees
C. 39 degrees
D. 51 degrees
E. 60 degrees