the drag is given by FD-3nVd, where is the air viscosity. Find the maximum speed starting from rest, and the time it takes to reach 95 percent of this speed. Plot the speed as a function of time.
the drag is given by FD-3nVd, where is the air viscosity. Find the maximum speed starting from rest, and the time it takes to reach 95 percent of this speed. Plot the speed as a function of time.
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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Transcribed Image Text:#4
1.11 For a small particle of styrofoam (1 lbm/ft) (spherical,
with diameter d = 0.3 mm) falling in standard air at speed V,
the drag is given by FD-3mVd, where is the air viscosity.
Find the maximum speed starting from rest, and the time it
takes to reach 95 percent of this speed. Plot the speed as a
function of time.
s)
Answer: (Vmax=0.0435",t=0.0133
S
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