A7-n vector at an angle of 45° to the horizontal has a vertical component that is about

Vectors are easy once you break them down the right way.

Here is a shortcut formula i have got for you to use to find the x & y components of any vecor, once you know the magnitude and angle (theta):

to find the x component, use:


to find the y component use:


so for this question use:

Since the pully is a simple machine so the mechanical advantage is a 1