How do I find the vertical component of a vector?

1 Answer
Aug 19, 2014

The formula for the vertical component of a vector ai + bj is as follows:

#v_y = ||A|| sin(θ)#

First, calculate the magnitude of the vector A which is #||A||#:
||A|| = #sqrt(a^2 + b^2)#

Next, determine #theta#
If you draw a triangle where a is the x axis and b is the y axis, you get a right triangle. The angle #theta# has the following measurement below:
#tan(theta) = b/a#
#theta = artcan(b/a)#

Finally, we have the vertical component formula:
#v_y = ||A|| sin(θ)#

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