Asked by Ama
Two horizontal vectors, 21 units North and 20 units East, are combined with a 10-unit vector
vertically upwards. Find the angle between the resultant of the three vectors and the vertical
one.
vertically upwards. Find the angle between the resultant of the three vectors and the vertical
one.
Answers
Answered by
oobleck
The resultant is z = 20i + 21j + 10k
Find |z|.
If the angle is θ
10k • z = 10 * |z| cosθ
Find |z|.
If the angle is θ
10k • z = 10 * |z| cosθ
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