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An ant starts from origin and moves to the mid- point of CD edge and stops there. It then moves to the mid-point of GF edge and again stops there. If P and Q are the midpoint fo CD and GF respectively, then find `bar(AB) + bar(PQ)`. The figure is a cube of side `1 m`. A. `hat(i) + hat(j) + (hat(k))/(2)`B. `hat(i) - hat(j) + (hat(k))/(2)`C. `- hat(i) - hat(j) - (hat(k))/(2)`D. `hat(i) + hat(j) - (hat(k))/(2)` |
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Answer» Correct Answer - A `bar(AP) + bar(PQ) = bar(AQ)` `A (0, 0, 0)` `Q (1, 1, (1)/(2))` So `bar(AQ) = hat(i) + hat(j) + (hat(k))/(2)` |
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