QUESTION 3 10 points Save Answer A hinged gate of length 5 m, inclined at 30C with the horizontal and with water mass on its left, is shown in the figure below. Density of water is 1000 kg/m3 What is the the minimum mass of the gate in kg per unit width (perpendicular to the plane of the screen), required to keep it closed? Drawing of the hunged gate: Hinged gate.tif Tips. Develop your answer by assuming a simple rectangular cross-section for the hinged gate. Check your units and see if conversions are required. Then project the relevant forces onto a smart plane/axis to evaluate the different contributions. Details about your calculations must be provided in the answer sheet