Shuguang Yitong computing power center

1.

In the figure, the red,
size is GCOS θ,θ Is the inclination angle of the inclined plane
the direction is perpendicular to the inclined plane and downward

is the inclination angle of the inclined plane

2.

The red one in the picture,

is GCOS θ，θ Is the inclined plane angle

direction perpendicular to the inclined plane downward

3. Three forces can be combined into a right triangle. If the force perpendicular to the ground is f, then the force perpendicular to the slope is fcos