A box is being pulled up a ramp with a force F. The ramp has a 30 degree incline with the horizontal. write the sum of the forces in the x direction and y direction. Make the x and y coordinate system be parallel and perpendicular with the ramp.
The Attempt at a Solution
Ok so my sum of forces in the x direction (parallel to the ramp) is
F_pull - F_gx = ma
Force of the pull minus force of gravity on the box in the x direction equals mass times accel.
My sum of forces in the y direction (perp. to the ramp) is
n = mg
Normal force equals mass times accel due to gravity
I am having trouble grasping this. Please help me understand :)