Water flows from a two-dimensional open channel and is diverted by an inclined plate as...

Water flows from a two-dimensional open channel and is diverted by an inclined plate as illustrated in Fig. P5.36. When the velocity at section (1) is 10 ft/s, what horizontal force (per unit width) is required to hold the plate in position? At section (1) the pressure distribution is hydrostatic, and the fluid acts as a free jet at section (2). Neglect friction.