GATE Civil Engineering (CE) 2016 Shift 2 Solved Paper

A square plate is suspended vertically from one of its edges using a hinge support as shown in figure. A water jet of 20 mm diameter having a velocity of 10 m/s strikes the plate at its mid-point, at an angle of 30° with the vertical. Consider g as 9.81 m/s² and neglect the self-weight of the plate. The force F (expressed in N) required to keep the plate in its vertical position is _________