A 73-mm-diameter aluminum ( \(\mathrm{SG}=2.64)\) piston of \(100-\mathrm{mm}\) length resides in a stationary 75 -mm-inner-diameter steel tube lined with SAE \(10 \mathrm{~W}-30\) oil at \(25^{\circ} \mathrm{C}\). A mass \(m=2 \mathrm{~kg}\) is suspended from the free end of the piston. The piston is set into motion by cutting a support cord. What is the terminal velocity of mass \(m\) ? Assume a linear velocity profile within the oil.

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Cut to set in motion X Piston Oil film Tube m V P2.40, P2.44