A board 3 ft by 3 ft that weighs 40 lbf slides down an inclined ramp with a velocity of
Chapter 9, Problem 9.5(choose chapter or problem)
A board 3 ft by 3 ft that weighs 40 lbf slides down an inclined ramp with a velocity of 0.5 fps. The board is separated from the ran1p by a layer of oil 0.02 in. thick. Neglecting the edge effects of the board, calculate the approximate dynamic viscosity f.L of the oil.
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