Question

Force
ABCD is quadrilateral
B, BC, CD and DA act at a point. The resultants
(A) 2AB
(B) 2DA
(C) 2B0
(D) 2BA​

Answer 1

Answer:

(D) 2BA

Explanation:

As AB, BC,CD,DA form a quadrilateral

AB +CD + BC + DA = 0

and AB = -BA

so BA = BC + CD + DA

Resultant fra.=F2 =BA + BC +CD + DA

= BA + BA

Fr= 2BA