Physics, 12.02.2021 16:10 aroland1990x
A fire hose sends 2429 gallons of water per minute against a burning building. The water strikes the building at 66 m/s and does not bounce back. There are 3.785 L/gal Liters in a gallon, and the density of water is 1 kg/L.
a) What is the magnitude of the rate of change of momentum of the water? Answer in units of N.
b) The rate of change of momentum of the water 1. is negative. 2. cannot be determined. or 3. is positive?
c ) What force does the water exert on the building in 1.2 minutes? Answer in units of N.
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