The velocity of water from a fire hose can vary depending on several factors, including the water pressure and the type of nozzle being used. Generally, a fire hose can expel water at velocities ranging from 25 to 40 meters per second (82 to 131 feet per second). However, it's important to note that these velocities are approximate values and can be influenced by factors such as hose diameter, nozzle type, and the pressure of the water supply. The velocity of water from a fire hose is designed to be high to allow for effective firefighting and the projection of water over long distances.