water is flowing in a fire hose with a velocity of 1.0 m/s and a pressure of 200000 pa. at the nozzle the pressure decreases to atmospheric pressure (101300 pa), there is no change in height. use the bernoulli equation to calculate the velocity of the water exiting the nozzle. (hint: the density of water is 1000 kg/m3 and gravity g is 9.8 m/s2 . pay attention to units!)]

Velocity is a vector quantity that describes the speed and direction of an object's motion. It is defined as the rate of change of position with respect to time. In other words, it is the speed of an object in a particular direction. It is a measure of how quickly an object is moving in a particular direction. Velocity can be measured in a variety of units such as meters per second, miles per hour, and kilometers per hour. The magnitude of velocity is known as speed. A car moving at a constant speed of 50 kilometers per hour for one hour would have a velocity of 50 kilometers per hour in the same direction. The direction of velocity is also important and can be specified in terms of the angle it makes with a fixed reference line. Velocity can be either positive or negative depending upon the direction of motion. The velocity of an object can be calculated by dividing the distance traveled by the time taken.

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