A penny is 1.52 ?mm thick with a diameterof 19.05 mm and a mass of 2.5 g. What is the terminalspeed of a penny falling face first? That is, with the picture ofPresident Lincoln facing straight down. Use 0.80 for the dragcoefficient and 1.3 kg/m³ for the density ofair.

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To calculate the terminal speed of a penny falling face first with the given dimensions and properti... View the full answer