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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 ENGLISH-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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  3. Two forces vec A B and vec A D are acting at vertex A of a quadrilat...

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  18. Column I, Column II Collinear vectors, p. vec a Coinitial vec...

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  19. Statement 1: | vec a|=3,| vec b|= 4 a n d | vec a+ vec b|=5,t h e n| ...

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