Question

what do you mean by multiplication of a vector illustrate it by some examples​

Answer 1

Answer:

When a vector is multiplied by a scalar quantity, then the magnitude of the vector changes in accordance with the magnitude of the scalar but the direction of the vector remains unchanged. Example: A vector is represented in orthogonal system as \overrightarrow {a} = 3 \hat i + \hat j + \hat k .

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Answer 2

When a vector is multiplied by a scalar quantity, then the magnitude of the vector changes in accordance with the magnitude of the scalar but the direction of the vector remains unchanged. ... Example: A vector is represented in orthogonal system as \overrightarrow {a} = 3 \hat i + \hat j + \hat k .