I want to find the vertical or you could say perpendicular component of a →...
I want to find the vertical or you could say perpendicular component of on
Now I know that it can be found out using
However I wanted to know why it cannot be found out using this method I tried. What is the flaw in it?
Now should be equal to
Using this I can write the expression as which on simplifying gives me
which I believe should be the perpendicular component
Now I'm probably doing something really stupid but I can't really understand where am I going wrong ?