One way to estimate the effective area of an object is to measure its limiting velocity v
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One way to estimate the effective area 
of an object is to measure its limiting velocity v∞ falling in air. Explain how this works and find the expression for Aeff as a function of m (the mass of the object), v∞, g, and the density of air. The drag coefficient of a soccer ball (radius 11 cm, mass 0.43 kg) is cd ≈ 0.25. What is its limiting velocity?
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Because the force due to air resistance increases with velocity if an object is allowed to fall i...View the full answer
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