How much torque does the child exert, taking the knee as the pivot? How much torque does the weight of the leg itself exert? What force () should the upper leg muscle exert to lift the child at a constant speed?

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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  1. A father lifts his child as shown in the figure below.
    • How much torque does the child exert, taking the knee as the pivot?
    • How much torque does the weight of the leg itself exert?
    • What force () should the upper leg muscle exert to lift the child at a constant speed? 
Fa
r = 20.0 cm
" = 38.0 cm
r = 2.0 cm
CG
mg = 4.0 kg
Donia = 10 kg
W
child
Transcribed Image Text:Fa r = 20.0 cm " = 38.0 cm r = 2.0 cm CG mg = 4.0 kg Donia = 10 kg W child
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