Question

Example 4.1: A hose pipe used for gardening is
ejecting water horizontally at the rate of 0.5 m/s.
Area of the bore of the pipe is 10 cm. Calculate
the force to be applied by the gardener to hold
the pipe horizontally stationary.
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Answer 1

Answer:

25 N

Explanation:

velocity v = 0.5 m/s

force required by gardener to hold the pipe = force exerted by the jet of water

= density of water * area of pipe*v^2

= 1000*0.1*0.5^2 = 25 N