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Physics XI Notes for Physics Notes

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Multiplication & Division Of Vector By a Number (Scalar)

Multiplication of a vector by scalar
When a vector is multiplied by a positive number (for example 2, 3 ,5, 60 unit etc.) or a scalar only its magnitude is changed but its direction remains the same as that of the original vector.
If however a vector is multiplied by a negative number (for example -2, -3 ,-5, -60 unit etc.) or a scalar not only its magnitude is changed but its direction also reversed.

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Division of a vector by a scalar

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