Three students are holding 3 water systems with identical water hoses and nozzles. Student A is holding the hose straight so that the water leaves the nozzle in the same direction it comes, student B is holding the hose 45° upwards from horizontal line while student C holds it backward so that the water makes a U-turn before being discharged. Discuss the reaction force experienced by each student.

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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.