Question: As shown in the figure below, the piston inside the cylinder is lowered at a speed of Vp = 4 m / s , and

As shown in the figure below, the piston inside the cylinder is lowered at a speed of Vp =4 m/s, and air escapes through the open surface at the bottom of the cylinder. What is the average speed (m/s) at which the air escapes? However, assume that the air is incompressible.
As shown in the figure below, the piston inside

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