
Elements Of Electromagnetics
7th Edition
ISBN: 9780190698614
Author: Sadiku, Matthew N. O.
Publisher: Oxford University Press
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Transcribed Image Text:Pearson's MyLab & MasteringMasteringEngineering Mastering x+
C https://session.masteringengineering.com/myct/itemView?offset- next&lassignmentProblemiD-8341780
Homework 4
Problem 13.112
Part A
The pilot of an airplane executes a vertical loop which in part
follows the path of a four-leaved rose,r (-600 cos 20 ft,
where θ is in radians. His speed at A is a constant up-80 ft/s
He weighs 135 lb. Hint To determine the time derivatives
necessary to compute the acceleration components ar and ae
take the first and second time derivatives of r -600 cos 20)
Determine the magnitude of the vertical reaction the seat of the plane exerts on the pilot when the plane is at A
Express your answer to three significant figures and include the appropriate units.
Then,for turther infomalion use +(re) to
determine θ. Also, take the time derivative of-yW + (ref
noting that tp:0, to determined (Figure 1)
NValue
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r-600 cos 26
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