Question

Acceleration formal explanation using trigonometry please!!1

Answer 1

SO I known A = (A cos (theta), A sin (theta))
But I want to know how is it that and also why does it change when doing the inclined planed with gravitational force to
Fg = (Fg sin(theta), Fg cos (theta)

Answer 2

I'm taking that you're not familiar with vector components?


note the different trigs.