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Two forces vec A B and vec A D are act...

Two forces ` vec A B` and ` vec A D` are acting at vertex A of a quadrilateral ABCD and two forces ` vec C B` and ` vec C D` at C prove that their resultant is given by 4` vec E F` , where E and F are the midpoints of AC and BD, respectively.

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CENGAGE PUBLICATION-VECTOR ALGEBRA-All Questions
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  2. Prove that the resultant of two forces acting at point O and repres...

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  5. If vector vec a+ vec b bisects the angle between vec a and vec b , ...

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  6. ABCDE is a pentagon. Prove that the resultant of force vec A B , vec...

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  7. if vec (AO) + vec (O B) = vec (B O) + vec (O C) ,than prove that B...

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  14. Statement 1: If | vec a+ vec b|=| vec a- vec b|, then vec a and vec b ...

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