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Magnitude of a vector
- Lesson: 1a5:08
- Lesson: 1b3:11
- Lesson: 2a2:58
- Lesson: 2b2:29
- Lesson: 3a2:11
- Lesson: 3b2:42
- Lesson: 3c1:58
- Lesson: 44:14
Magnitude of a vector
Finding the magnitude of a vector is very much the same as determining the length of the hypotenuse of a right triangle – we almost use the exact Pythagorean formula! In this section, we will learn how the horizontal component and the vertical component enable us to algebraically calculate the magnitude of a vector.
Related Concepts: Distance and midpoint of complex numbers
Lessons
Magnitude of a vector ∣∣v∣∣=vx2+vy2
- 1.Find the magnitude of the following vectors:
a)pb)q - 2.Find the magnitude of the following vectors:
a)rb)s - 3.Find the magnitude of the following vectors:a)m=< 3,−1>b)
c)
- 4.Given that the vector v has its initial point at (2,1) and its terminal point at (6,-4), find the magnitude of the vector v