Answer to Question #172436 in Classical Mechanics for John Adrian Tan

Question

compute the maximum force p that can be applied to thte foot pedal. the 6mm diameter pin at b is in single shear, and its working shear stress is 28mpa. the cable attached at c has a diameter of 3mm and working normal stress of 140mpa free

Answer 1

Answer

Maximum force can be obtain as

$Shear \quad Stress =\frac{shear\quad force}{Area}\\$

$28=\frac{17.46P}{\frac{\pi}{4}(6) ^2}\\P=45.348N$