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kt102188
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Homework Statement
A fire hose discharges water at a rate of 16.0 kg/s with a speed of 20 m/s. What magnitude of force is needed to hold the nozzle stationary?
Homework Equations
Impulse= Change in Momentum, Momentum (p)= mv, velocity final=velocity inital + at
The Attempt at a Solution
V= 20m/s + 9.81m/(s*s)= 29.81
M=(16.0kg)(29.81)
=476.96
Since impulse is the force over time, I thought impulse should be the force needed to keep the hose stationary, but it's not. Any help in where I went wrong would be great! Thanks!