s shown in Fig. 10.17, consider the person performing extension movements of the lower leg about the knee joint. The setup of the experiment is described in Example10.4. After a series of computations it is determined that the lower leg was extended from 0 = 0° to 0 = 85° with an average angular velocity of co = 3.3 rad/s. For this system it is also estimated that the angular power generated by the knee extensor muscles during the experiment is P=290 W. Assuming that the mass moment of inertia of the lower leg about the center of rotation of the knee joint is lo = 93 kg m^2, determine: (a) The torque produced by the knee extensor muscles b) The work done by the muscles to extend the lower c) The kinetic energy generated by the knee extensor muscles
s shown in Fig. 10.17, consider the person performing extension movements of the lower leg about the knee joint. The setup of the experiment is described in Example10.4. After a series of computations it is determined that the lower leg was extended from 0 = 0° to 0 = 85° with an average angular velocity of co = 3.3 rad/s. For this system it is also estimated that the angular power generated by the knee extensor muscles during the experiment is P=290 W. Assuming that the mass moment of inertia of the lower leg about the center of rotation of the knee joint is lo = 93 kg m^2, determine: (a) The torque produced by the knee extensor muscles b) The work done by the muscles to extend the lower c) The kinetic energy generated by the knee extensor muscles
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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As shown in Fig. 10.17, consider the person
performing extension movements of the lower leg
about the knee joint. The setup of the experiment is
described in Example10.4. After a series of
computations it is determined that the lower leg was
extended from 0 = 0° to 0 = 85° with an average
angular velocity of co = 3.3 rad/s. For this system it is
also estimated that the angular power generated by
the knee extensor muscles during the experiment is
P=290 W. Assuming that the mass moment of inertia
of the lower leg about the center of rotation of the
knee joint is lo = 93 kg m^2, determine:
(a) The torque produced by the knee extensor
muscles
b) The work done by the muscles to extend the lower
c) The kinetic energy generated by the knee extensor
muscles
Transcribed Image Text:Fig, 18.17 Knee extension
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