Firefighters are throwing a jet of water at a burning building using a high-pressure hose that gives the water a speed of 25 m/s as it comes out of the nozzle. Once it comes out of the hose, the water moves in a projectile motion. Firefighters adjust the elevation angle until it takes 3s for the water to reach a building 45 m away. Assume that the nozzle of the hose is at ground level a) Calculate the angle a b) At what height above the ground does the water hit the building, and with what vertical velocity does it do so? VO a 45 m 00000 OOOOC
Firefighters are throwing a jet of water at a burning building using a high-pressure hose that gives the water a speed of 25 m/s as it comes out of the nozzle. Once it comes out of the hose, the water moves in a projectile motion. Firefighters adjust the elevation angle until it takes 3s for the water to reach a building 45 m away. Assume that the nozzle of the hose is at ground level a) Calculate the angle a b) At what height above the ground does the water hit the building, and with what vertical velocity does it do so? VO a 45 m 00000 OOOOC
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Firefighters are throwing a jet of water at a burning building using a
high-pressure hose that gives the water a speed of 25 m/s as it
comes out of the nozzle. Once it comes out of the hose, the water
moves in a projectile motion. Firefighters adjust the elevation angle
until it takes 3s for the water to reach a building 45 m away. Assume
that the nozzle of the hose is at ground level a) Calculate the angle
a b) At what height above the ground does the water hit the
building, and with what vertical velocity does it do so?
VO
a
45 m
OOOOO
DODODD
DOOD
DOD
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