Water flows straight down from an open faucet. the cross-sectional area of the faucet is 2.4 × 10-4m2 and the speed of the water is 0.80 m/s as it leaves the faucet. ignoring air resistance, find the cross-sectional area of the water stream at a point 0.11 m below the faucet.

To solve this problem it is necessary to apply the continuity equations in the fluid and the kinematic equation for the description of the displacement, velocity and acceleration.

By definition the movement of the Fluid under the terms of Speed, acceleration and displacement is,

Where,

Velocity in each state

g= Gravity

h = Height

Our values are given as,

Replacing at the kinetic equation to find we have,

Applying the concepts of continuity,

We need to find A_2 then,

So the cross sectional area of the water stream at a point 0.11 m below the faucet is

Therefore the cross-sectional area of the water stream at a point 0.11 m below the faucet is

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explanation: