Example 7 - Find a vector in direction of vector a = i - 2j - Unit vector

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  1. Chapter 10 Class 12 Vector Algebra
  2. Serial order wise

Transcript

Example 7 Find a vector in the direction of vector = 2 that has magnitude 7 units. = 2 = 1 2 + 0 Magnitude of = 12+( 2)2+02 = 1+4+0 = 5 Unit vector in direction of = 1 = 1 5 1 + 2 + 0 = 1 5 2 5 + 0 = 1 5 2 5 Thus, Vector having a magnitude 1 = 1 5 2 5 Vector having a magnitude 7 = 7 1 5 2 5 = 7 5 14 5 Thus, required vector is

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