A sailboard is gliding across a lake at a speed of (1 mathrm{mph}(0.45 mathrm{~m} / mathrm{s})). The
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A sailboard is gliding across a lake at a speed of \(1 \mathrm{mph}(0.45 \mathrm{~m} / \mathrm{s})\). The sailboard is \(0.3 \mathrm{~m}\) long, \(1 \mathrm{~m}\) wide and represents a smooth, flat surface. Assume laminar flow.
a. What is the average friction factor for the sailboard?
b. What is the average shear stress on the sailboard?
c. How much power must the wind provide to propel the sailboard? (Power \(=\) Force*Distance/Time)
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a The average friction factor for the sailboard can be calculated using the drag coefficient CD and ...View the full answer
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