Calculate the mass m needed in order to suspend the leg shown in the figure below. Assume the leg (with cast) has a mass of 14.1 kg, and its CG is 34.2 cm from the hip joint; the sling is 80.4 cm from the hip joint.
Given,
m1=14.1kgm_1=14.1kgm1=14.1kg
CG=34.2cmCG=34.2cmCG=34.2cm
m2=?m_2=?m2=?
sling length(sl)=80.4cm80.4cm80.4cm
Now, 14.1kg×34.2=m2×80.414.1kg\times 34.2=m_2\times 80.414.1kg×34.2=m2×80.4
⇒m2=14.1×34.280.4kg\Rightarrow m_2=\frac{14.1\times 34.2}{80.4}kg⇒m2=80.414.1×34.2kg
⇒m2=5.997kg\Rightarrow m_2=5.997kg⇒m2=5.997kg
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