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Question: determine the unit vectors u da u db and...

Question details

) Determine the unit vectors u DA, u DB and u DC+Z 3 m 3 m 1m 4 m 2 m 3 m 2 m 200 N +X

respectively.

(b) Calculate the magnitude of the forces F

DA

, F

DB

and F

DC

for

the system to stay in equilibrium.

(Hint: Sum forces at point D, ∑ Fx =0, ∑ Fy =0 and ∑ Fz

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