Estimate the terminal speed of a wooden sphere density, Ask an Expert

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Q1. Estimate the terminal speed of a wooden sphere (density 0.810 g/cm3) falling through air, if its radius is 8.00 cm and its drag coefficient is 0.500. (The density of air is 1.20 kg/m3.)

Q2. A helicopter is ascending vertically with a speed of 5.55 {rm m/s}. At a height of 146 {rm m} above the Earth, a package is dropped from a window.

How much time does it take for package to reach the ground?

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Category:- Physics
Reference No.:- M9165480

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