GATE IN 2005 | Vector Calculus Question 8 | Engineering Mathematics

GATE IN 2005

MCQ (Single Correct Answer)

-0.3

If a vector $$\overrightarrow R \left( t \right)$$ has a constant magnitude then

$$\overrightarrow R .{{d\overrightarrow R } \over {dt}} = 0$$

$$\overrightarrow R \times {{d\overrightarrow R } \over {dt}} = 0$$

$$\overrightarrow R .\overrightarrow R {{d\overrightarrow R } \over {dt}}$$

$$\overrightarrow R \times \overrightarrow R {{d\overrightarrow R } \over {dt}}$$

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