Water from a fire hose is directed horizontally against a wall at a rate of 50.0 kg/s and a speed of 42.0 m/s. Calculate the magnitude of the force exerted on the wall, assuming the water’s horizontal momentum is reduced to zero.
Solution to 17PE
Step 1 of 2
We need to calculate how much force is exerted on wall by water coming out of a fire hose at a rate of . In order to calculate, we need to revisit the Newton’s second law of motion which states that,
“The rate of change of momentum of a body is directly proportional to the force applied”.
is the force
is the time
is the mass of the body
is the velocity. Thus,
In this question the velocity of the water is given as
The rate in which the mass of water is coming out of hose is given as
Textbook: College Physics
Author: Paul Peter Urone, Roger Hinrichs
The answer to “Water from a fire hose is directed horizontally against a wall at a rate of 50.0 kg/s and a speed of 42.0 m/s. Calculate the magnitude of the force exerted on the wall, assuming the water’s horizontal momentum is reduced to zero.” is broken down into a number of easy to follow steps, and 42 words. This full solution covers the following key subjects: Wall, Water, hose, directed, exerted. This expansive textbook survival guide covers 34 chapters, and 3125 solutions. The full step-by-step solution to problem: 17PE from chapter: 8 was answered by , our top Physics solution expert on 07/07/17, 04:39PM. College Physics was written by and is associated to the ISBN: 9781938168000. Since the solution to 17PE from 8 chapter was answered, more than 380 students have viewed the full step-by-step answer. This textbook survival guide was created for the textbook: College Physics , edition: 1.