A rectangular plate of weight 6 kg is suspended vertically by a hinge on the top horizontal edge .The cg of the plate is 10cm from the hinge. A horizontal jet of water 2cm diameter ,whose axis is 15 m below the hinge, impinges normally on the plate with a velocity of 5m/Sec . Find the horizontal force applied at the cg to maintain the plate in its vertical position. find the corresponding velocity of the jet if the plate is deflected through 30 degree and  the same for continues to act at the cg of the plate

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Fire safety

Fire safety is a new domain emerged in the early 90s to enable the design of buildings, structures, and infrastructure against destruction through fire. It also includes the provisions of building codes. This field is mostly associated with the design and efficient planning of a building, to reduce the destruction caused by fire. The branch of engineering that deals with it for the safety of the buildings from destruction of fire, is known as fire safety engineering.