Skydiver Luke jumps with his parachute of diameter D = 12m out of an airplane. The combined mass of the parachute and Luke is 100 kg. The drag coefficient for the fully open parachute is C_{D} = 1.4 . Neglecting acceleration and considering a linear change of air density with altitude, estimate Luke's fall time between altitudes of 3000 m and 2000 m. For the density of air at these two altitudes, assume pair (3000m) = 1.0 kg/m³ and pair (2000m) = 1.1 kg/m³.
Skydiver Luke jumps with his parachute of diameter D = 12m out of an airplane. The combined mass of the parachute and Luke is 100 kg. The drag coefficient for the fully open parachute is C_{D} = 1.4 . Neglecting acceleration and considering a linear change of air density with altitude, estimate Luke's fall time between altitudes of 3000 m and 2000 m. For the density of air at these two altitudes, assume pair (3000m) = 1.0 kg/m³ and pair (2000m) = 1.1 kg/m³.
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Skydiver Luke jumps with his parachute of diameter D = 12m out of an airplane. The combined mass of the parachute and Luke is 100 kg. The drag coefficient for the fully open parachute is C_{D} = 1.4 . Neglecting acceleration and considering a linear change of air density with altitude, estimate Luke's fall time between altitudes of 3000 m and 2000 m. For the density of air at these two altitudes, assume pair (3000m) = 1.0 kg/m³ and pair (2000m) = 1.1 kg/m³.
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