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Let veca,vecb and vecc be three vectors ...

Let `veca,vecb` and `vecc` be three vectors of magnitude 3,2,5 respectively. If each one is perpendicular to the sum of other two vectors, prove that : `|veca+vecb+vecc|=sqrt(38)`.

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MODERN PUBLICATION-VECTORS-Exercise
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  10. Classify the following measure as scalar and vector: 20 m/s^2

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  19. In the figure identify the following vectors : Co-initial.

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  20. In the figure identify the following vectors : Equal.

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