018 (part 12of 2) 10.0 pointsGiven: g = 9.8 m/s . A wooden sphere has radius...
018 (part 12of 2) 10.0 pointsGiven: g = 9.8 m/s .
A wooden sphere has radius R = 12 cm, density ρwood = 748 kg/m3, and aerodynami- cal drag coefficient D = 0.5. What is the ter- minal speed vt of this sphere falling through the air of density ρair = 1.2 kg/m3?
Answer in units of m/s.
019 (part 2 of 2) 10.0 points
Now consider the same sphere falling freely without any resistance. From which height hshould it fall to reach the same speed?
Answer in units of m.
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018 (part 12of 2) 10.0 pointsGiven: g = 9.8 m/s .
A wooden sphere has radius...
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acceleration g. Using dimensional analysis with p. V and D as
repeating variables, determine suitable dimensionless groups to
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variables. If the same sphere were to fall through air, determine
the ratio of the drag...
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