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If vec r is a vector of magnitude 21 ...

If ` vec r` is a vector of magnitude 21 and has direction ratios `2,-3a n d6,` then find ` vec rdot`

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To find the vector \(\vec{r}\) given its magnitude and direction ratios, we can follow these steps: ### Step 1: Identify the Direction Ratios The direction ratios given are \(2, -3, 6\). ### Step 2: Calculate the Magnitude of the Direction Ratios The magnitude of the direction ratios can be calculated using the formula: \[ ...
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