Question: A dash pot 15 cm diameter and 25 cm long slides vertically down in a cylinder having 16 cm diameter with a uniform velocity. The

A dash pot 15 cm diameter and 25 cm long slides vertically down in a cylinder having 16 cm diameter with a uniform velocity. The oil filling the annular space has a viscosity of 0.7 poise. Find the speed with which the piston slides down, if the weight of the piston is 10N.

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