Question

IF a vector F=2i+4j+8k is placed at (2,2,2)
What will be angle with y axis to this vector.?

Answer 1

Sine is the trig function that gives the Y value, and the j unit vector also corresponds to the Y, so using the triangle formed between the Y-axis and the vector... Use sine^-1 theta to solve for the angle.

Answer 2

|F|=sqrt(84)
\[\theta_y=\cos^{-1}(\frac{F.j}{|F|})\]

Answer 3

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