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The same couple moment of 80.0 lbâ‹…ft is required to open the hatch door, independent of where the couple's forces are applied. If the forces are applied at points C and D, what force magnitude F is required to open the hatch door?

Respuesta :

Answer:

force magnitude F  required to open the hatch door is 4.44 lb

Explanation:

given data

couple moment = 80.0 lbâ‹…ft

solution

we consider here radius r

r = 9 ft

so here moment is express as

moment = F × (2 × r )   ........................1

put here value

80 = F × (2 × 9  )

80 = F × 18

F = [tex]\frac{80}{18}[/tex]  

F = 4.44 lb

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