3. A plate is held against a horizontal water jet in the horizontal plane as shown. The jet has a diameter of 30 mm and an unknown velocity. A force of 200 N is required to hold the plate in the position. Determine the velocity of flow of the jet just before it hits the plate. What is the discharge? <<-200 N

Name: Class: ......... Assignment No. 3 Q4- A rectangular gate 6 ft tall and 5 ft wide in the side of an open tank is held in place by the force F as indicated in Figure. The weight of the gate is negligible, and the hinge at O is frictionless. (a) Determine the water depth, h, if the resultant hydrostatic force of the water acts 2.5 ft above the bottom of the gate, i.e., it is collinear with the applied force F. (b) For the depth of part (a), determine the magnitude of the resultant hydrostatic force. (c) Determine the force that the hinge puts on the gate under the above conditions. Water Hinge O Gate 6 ft 2.5ft Name: Class: Assignment No. 3