4. A 0.6-meter circular gate has its top edge 10 m below the water surface and is at a 45° angle with its hinge resting against the bottom of the tank, as shown in the figure. Assume a water density of 1000 kg/m³. a. What is the resultant force on the gate due to the water? b. Where is this force acting (provide answer as distance to the hinge)? c. What is the force needed at the wall to just open the gate?

Q: e resultant force (kN

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